./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/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_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/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_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/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 0affde029ae482b9d2ea4727838aac0bedbe77b9d2e3e7a12b56be9a4d0491c8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:01:16,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:01:16,149 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 12:01:16,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:01:16,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:01:16,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:01:16,180 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:01:16,180 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:01:16,181 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:01:16,182 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:01:16,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:01:16,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:01:16,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:01:16,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:01:16,185 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:01:16,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:01:16,186 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:01:16,186 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:01:16,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:01:16,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:01:16,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:01:16,188 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:01:16,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:01:16,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:01:16,190 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:01:16,190 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:01:16,190 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:01:16,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:01:16,191 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:01:16,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:01:16,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:01:16,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:01:16,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:01:16,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:16,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:01:16,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:01:16,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:01:16,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:01:16,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:01:16,196 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:01:16,196 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:01:16,197 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:01:16,197 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:01:16,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:01:16,198 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_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0affde029ae482b9d2ea4727838aac0bedbe77b9d2e3e7a12b56be9a4d0491c8 [2023-11-26 12:01:16,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:01:16,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:01:16,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:01:16,565 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:01:16,566 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:01:16,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c [2023-11-26 12:01:19,570 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:01:19,897 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:01:19,898 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c [2023-11-26 12:01:19,906 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/data/96539cd3b/449bc7e93aea4bb3ac1e2f701771d9d9/FLAGf881e1d6a [2023-11-26 12:01:19,925 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/data/96539cd3b/449bc7e93aea4bb3ac1e2f701771d9d9 [2023-11-26 12:01:19,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:01:19,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:01:19,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:19,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:01:19,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:01:19,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:19" (1/1) ... [2023-11-26 12:01:19,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b901e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:19, skipping insertion in model container [2023-11-26 12:01:19,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:19" (1/1) ... [2023-11-26 12:01:19,973 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:01:20,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:20,205 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:01:20,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:20,238 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:01:20,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20 WrapperNode [2023-11-26 12:01:20,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:20,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:20,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:01:20,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:01:20,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (1/1) ... [2023-11-26 12:01:20,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (1/1) ... [2023-11-26 12:01:20,279 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2023-11-26 12:01:20,280 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:20,281 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:01:20,281 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:01:20,281 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:01:20,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (1/1) ... [2023-11-26 12:01:20,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (1/1) ... [2023-11-26 12:01:20,301 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (1/1) ... [2023-11-26 12:01:20,327 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 12:01:20,328 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (1/1) ... [2023-11-26 12:01:20,328 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (1/1) ... [2023-11-26 12:01:20,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (1/1) ... [2023-11-26 12:01:20,354 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (1/1) ... [2023-11-26 12:01:20,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (1/1) ... [2023-11-26 12:01:20,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (1/1) ... [2023-11-26 12:01:20,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:01:20,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:01:20,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:01:20,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:01:20,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (1/1) ... [2023-11-26 12:01:20,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:20,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:20,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:01:20,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:01:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:01:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:01:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:01:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:01:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 12:01:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 12:01:20,538 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:01:20,540 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:01:21,105 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:01:21,147 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:01:21,147 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:01:21,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:21 BoogieIcfgContainer [2023-11-26 12:01:21,148 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:01:21,151 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:01:21,151 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:01:21,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:01:21,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:01:19" (1/3) ... [2023-11-26 12:01:21,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2e0cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:21, skipping insertion in model container [2023-11-26 12:01:21,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:20" (2/3) ... [2023-11-26 12:01:21,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2e0cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:21, skipping insertion in model container [2023-11-26 12:01:21,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:21" (3/3) ... [2023-11-26 12:01:21,158 INFO L112 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound20.c [2023-11-26 12:01:21,178 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:01:21,178 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-26 12:01:21,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:01:21,248 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;@2c6b6d41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:01:21,249 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2023-11-26 12:01:21,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 53 states have (on average 1.9245283018867925) internal successors, (102), 97 states have internal predecessors, (102), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:21,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 12:01:21,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:21,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 12:01:21,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:21,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:21,273 INFO L85 PathProgramCache]: Analyzing trace with hash 157156750, now seen corresponding path program 1 times [2023-11-26 12:01:21,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:21,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494959410] [2023-11-26 12:01:21,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:21,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:21,468 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 12:01:21,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:21,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494959410] [2023-11-26 12:01:21,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494959410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:21,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:21,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:21,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117785877] [2023-11-26 12:01:21,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:21,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:01:21,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:21,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:01:21,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:01:21,522 INFO L87 Difference]: Start difference. First operand has 101 states, 53 states have (on average 1.9245283018867925) internal successors, (102), 97 states have internal predecessors, (102), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:21,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:21,575 INFO L93 Difference]: Finished difference Result 195 states and 211 transitions. [2023-11-26 12:01:21,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:01:21,597 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-26 12:01:21,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:21,606 INFO L225 Difference]: With dead ends: 195 [2023-11-26 12:01:21,606 INFO L226 Difference]: Without dead ends: 93 [2023-11-26 12:01:21,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:01:21,613 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:21,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:21,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-26 12:01:21,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-11-26 12:01:21,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 52 states have (on average 1.75) internal successors, (91), 90 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:21,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2023-11-26 12:01:21,703 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 5 [2023-11-26 12:01:21,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:21,704 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2023-11-26 12:01:21,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:21,704 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2023-11-26 12:01:21,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 12:01:21,705 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:21,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 12:01:21,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:01:21,706 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:21,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:21,707 INFO L85 PathProgramCache]: Analyzing trace with hash 157216333, now seen corresponding path program 1 times [2023-11-26 12:01:21,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:21,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989665629] [2023-11-26 12:01:21,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:21,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:21,810 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 12:01:21,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:21,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989665629] [2023-11-26 12:01:21,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989665629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:21,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:21,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:21,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192995792] [2023-11-26 12:01:21,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:21,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:21,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:21,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:21,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:21,821 INFO L87 Difference]: Start difference. First operand 93 states and 93 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:22,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:22,034 INFO L93 Difference]: Finished difference Result 179 states and 180 transitions. [2023-11-26 12:01:22,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:22,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-26 12:01:22,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:22,044 INFO L225 Difference]: With dead ends: 179 [2023-11-26 12:01:22,044 INFO L226 Difference]: Without dead ends: 174 [2023-11-26 12:01:22,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:22,048 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 78 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:22,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 118 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:22,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-11-26 12:01:22,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 123. [2023-11-26 12:01:22,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 81 states have (on average 1.728395061728395) internal successors, (140), 119 states have internal predecessors, (140), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:22,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2023-11-26 12:01:22,068 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 5 [2023-11-26 12:01:22,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:22,068 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2023-11-26 12:01:22,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:22,069 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2023-11-26 12:01:22,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 12:01:22,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:22,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:22,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:01:22,070 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:22,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:22,071 INFO L85 PathProgramCache]: Analyzing trace with hash 761042319, now seen corresponding path program 1 times [2023-11-26 12:01:22,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:22,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153614611] [2023-11-26 12:01:22,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:22,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:22,129 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 12:01:22,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:22,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153614611] [2023-11-26 12:01:22,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153614611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:22,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:22,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:22,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862330726] [2023-11-26 12:01:22,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:22,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:22,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:22,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:22,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:22,132 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:22,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:22,361 INFO L93 Difference]: Finished difference Result 171 states and 173 transitions. [2023-11-26 12:01:22,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:22,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-26 12:01:22,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:22,363 INFO L225 Difference]: With dead ends: 171 [2023-11-26 12:01:22,363 INFO L226 Difference]: Without dead ends: 153 [2023-11-26 12:01:22,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:22,365 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 52 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:22,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 68 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:22,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-26 12:01:22,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 135. [2023-11-26 12:01:22,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 93 states have (on average 1.5483870967741935) internal successors, (144), 131 states have internal predecessors, (144), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:22,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 148 transitions. [2023-11-26 12:01:22,379 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 148 transitions. Word has length 7 [2023-11-26 12:01:22,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:22,379 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 148 transitions. [2023-11-26 12:01:22,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:22,380 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 148 transitions. [2023-11-26 12:01:22,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 12:01:22,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:22,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:22,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:01:22,381 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:22,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:22,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1471095979, now seen corresponding path program 1 times [2023-11-26 12:01:22,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:22,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420580561] [2023-11-26 12:01:22,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:22,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:22,399 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:01:22,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [966913075] [2023-11-26 12:01:22,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:22,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:22,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:22,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:22,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:01:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:22,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:01:22,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:22,538 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 12:01:22,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:22,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:22,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420580561] [2023-11-26 12:01:22,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:01:22,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966913075] [2023-11-26 12:01:22,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966913075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:22,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:22,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:22,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331312501] [2023-11-26 12:01:22,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:22,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:22,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:22,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:22,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:22,545 INFO L87 Difference]: Start difference. First operand 135 states and 148 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 12:01:22,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:22,725 INFO L93 Difference]: Finished difference Result 135 states and 148 transitions. [2023-11-26 12:01:22,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:22,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2023-11-26 12:01:22,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:22,727 INFO L225 Difference]: With dead ends: 135 [2023-11-26 12:01:22,727 INFO L226 Difference]: Without dead ends: 121 [2023-11-26 12:01:22,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:22,734 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 67 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:22,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 33 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:22,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-26 12:01:22,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2023-11-26 12:01:22,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 113 states have internal predecessors, (121), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:22,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 125 transitions. [2023-11-26 12:01:22,758 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 125 transitions. Word has length 13 [2023-11-26 12:01:22,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:22,758 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 125 transitions. [2023-11-26 12:01:22,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 12:01:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 125 transitions. [2023-11-26 12:01:22,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 12:01:22,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:22,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:22,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:22,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:22,967 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:22,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:22,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1640664975, now seen corresponding path program 1 times [2023-11-26 12:01:22,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:22,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800776090] [2023-11-26 12:01:22,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:22,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:22,988 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:01:22,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [848360434] [2023-11-26 12:01:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:22,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:22,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:22,993 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:23,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:01:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:23,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:01:23,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:23,114 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 12:01:23,114 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:23,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:23,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800776090] [2023-11-26 12:01:23,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:01:23,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848360434] [2023-11-26 12:01:23,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848360434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:23,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:23,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:23,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854176117] [2023-11-26 12:01:23,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:23,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:23,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:23,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:23,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:23,118 INFO L87 Difference]: Start difference. First operand 117 states and 125 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 12:01:23,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:23,275 INFO L93 Difference]: Finished difference Result 130 states and 131 transitions. [2023-11-26 12:01:23,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:23,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2023-11-26 12:01:23,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:23,276 INFO L225 Difference]: With dead ends: 130 [2023-11-26 12:01:23,277 INFO L226 Difference]: Without dead ends: 106 [2023-11-26 12:01:23,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 12:01:23,278 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 33 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:23,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 54 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:23,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-26 12:01:23,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 103. [2023-11-26 12:01:23,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 75 states have (on average 1.36) internal successors, (102), 99 states have internal predecessors, (102), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:23,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 106 transitions. [2023-11-26 12:01:23,287 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 106 transitions. Word has length 14 [2023-11-26 12:01:23,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:23,287 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 106 transitions. [2023-11-26 12:01:23,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 12:01:23,288 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 106 transitions. [2023-11-26 12:01:23,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-26 12:01:23,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:23,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:23,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-26 12:01:23,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:23,494 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:23,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:23,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1630248025, now seen corresponding path program 1 times [2023-11-26 12:01:23,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:23,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259117510] [2023-11-26 12:01:23,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:23,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:23,507 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:01:23,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1477982437] [2023-11-26 12:01:23,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:23,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:23,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:23,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:23,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 12:01:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:23,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:01:23,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:23,634 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 12:01:23,635 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:23,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:23,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259117510] [2023-11-26 12:01:23,635 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:01:23,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477982437] [2023-11-26 12:01:23,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477982437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:23,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:23,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:23,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867419824] [2023-11-26 12:01:23,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:23,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:23,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:23,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:23,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:23,639 INFO L87 Difference]: Start difference. First operand 103 states and 106 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:23,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:23,652 INFO L93 Difference]: Finished difference Result 103 states and 106 transitions. [2023-11-26 12:01:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:23,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2023-11-26 12:01:23,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:23,677 INFO L225 Difference]: With dead ends: 103 [2023-11-26 12:01:23,678 INFO L226 Difference]: Without dead ends: 102 [2023-11-26 12:01:23,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 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 12:01:23,679 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 49 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:23,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 77 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:23,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-26 12:01:23,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-11-26 12:01:23,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 75 states have (on average 1.3333333333333333) internal successors, (100), 98 states have internal predecessors, (100), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:23,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 104 transitions. [2023-11-26 12:01:23,709 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 104 transitions. Word has length 29 [2023-11-26 12:01:23,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:23,711 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 104 transitions. [2023-11-26 12:01:23,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:23,737 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 104 transitions. [2023-11-26 12:01:23,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 12:01:23,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:23,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:23,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:23,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:23,939 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:23,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:23,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1001918683, now seen corresponding path program 1 times [2023-11-26 12:01:23,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:23,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107128541] [2023-11-26 12:01:23,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:23,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:23,951 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:01:23,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [962465979] [2023-11-26 12:01:23,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:23,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:23,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:23,952 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:23,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 12:01:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:24,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:01:24,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:24,063 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 12:01:24,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:24,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:24,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107128541] [2023-11-26 12:01:24,064 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:01:24,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962465979] [2023-11-26 12:01:24,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962465979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:24,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:24,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:24,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923510908] [2023-11-26 12:01:24,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:24,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:24,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:24,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:24,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:24,066 INFO L87 Difference]: Start difference. First operand 102 states and 104 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:24,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:24,085 INFO L93 Difference]: Finished difference Result 103 states and 104 transitions. [2023-11-26 12:01:24,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:24,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-26 12:01:24,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:24,087 INFO L225 Difference]: With dead ends: 103 [2023-11-26 12:01:24,087 INFO L226 Difference]: Without dead ends: 102 [2023-11-26 12:01:24,088 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 12:01:24,088 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:24,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:24,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-26 12:01:24,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-11-26 12:01:24,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 75 states have (on average 1.32) internal successors, (99), 98 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:24,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 103 transitions. [2023-11-26 12:01:24,095 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 103 transitions. Word has length 30 [2023-11-26 12:01:24,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:24,095 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 103 transitions. [2023-11-26 12:01:24,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:24,096 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 103 transitions. [2023-11-26 12:01:24,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-26 12:01:24,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:24,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:24,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:24,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-26 12:01:24,303 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:24,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:24,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1928262825, now seen corresponding path program 1 times [2023-11-26 12:01:24,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:24,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950624577] [2023-11-26 12:01:24,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:24,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:24,313 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:01:24,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [806853843] [2023-11-26 12:01:24,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:24,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:24,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:24,315 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:24,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 12:01:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:24,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:01:24,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:24,431 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 12:01:24,431 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:24,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:24,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950624577] [2023-11-26 12:01:24,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:01:24,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806853843] [2023-11-26 12:01:24,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806853843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:24,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:24,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:24,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453160507] [2023-11-26 12:01:24,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:24,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:24,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:24,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:24,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:24,435 INFO L87 Difference]: Start difference. First operand 102 states and 103 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:24,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:24,661 INFO L93 Difference]: Finished difference Result 174 states and 176 transitions. [2023-11-26 12:01:24,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:24,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2023-11-26 12:01:24,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:24,663 INFO L225 Difference]: With dead ends: 174 [2023-11-26 12:01:24,663 INFO L226 Difference]: Without dead ends: 160 [2023-11-26 12:01:24,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:24,664 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 54 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:24,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 77 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:24,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-26 12:01:24,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 145. [2023-11-26 12:01:24,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 140 states have internal predecessors, (150), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:01:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 156 transitions. [2023-11-26 12:01:24,672 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 156 transitions. Word has length 34 [2023-11-26 12:01:24,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:24,672 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 156 transitions. [2023-11-26 12:01:24,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:24,673 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 156 transitions. [2023-11-26 12:01:24,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-26 12:01:24,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:24,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:24,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:24,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-26 12:01:24,881 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:24,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:24,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1929673579, now seen corresponding path program 1 times [2023-11-26 12:01:24,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:24,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959115897] [2023-11-26 12:01:24,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:24,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:24,892 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:01:24,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [756289282] [2023-11-26 12:01:24,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:24,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:24,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:24,903 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:24,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 12:01:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:24,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:01:24,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:25,016 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 12:01:25,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:25,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:25,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959115897] [2023-11-26 12:01:25,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:01:25,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756289282] [2023-11-26 12:01:25,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756289282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:25,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:25,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:25,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740814574] [2023-11-26 12:01:25,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:25,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:25,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:25,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:25,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:25,019 INFO L87 Difference]: Start difference. First operand 145 states and 156 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:25,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:25,189 INFO L93 Difference]: Finished difference Result 146 states and 156 transitions. [2023-11-26 12:01:25,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:25,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2023-11-26 12:01:25,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:25,191 INFO L225 Difference]: With dead ends: 146 [2023-11-26 12:01:25,191 INFO L226 Difference]: Without dead ends: 145 [2023-11-26 12:01:25,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:25,192 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 23 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:25,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 117 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:25,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-11-26 12:01:25,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2023-11-26 12:01:25,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 117 states have (on average 1.2735042735042734) internal successors, (149), 140 states have internal predecessors, (149), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:01:25,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 155 transitions. [2023-11-26 12:01:25,200 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 155 transitions. Word has length 36 [2023-11-26 12:01:25,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:25,200 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 155 transitions. [2023-11-26 12:01:25,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:25,201 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions. [2023-11-26 12:01:25,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-26 12:01:25,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:25,202 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:25,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:25,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-26 12:01:25,414 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:25,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:25,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1231617241, now seen corresponding path program 1 times [2023-11-26 12:01:25,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:25,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190467953] [2023-11-26 12:01:25,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:25,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:25,425 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:01:25,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1413403655] [2023-11-26 12:01:25,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:25,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:25,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:25,427 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:25,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 12:01:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:25,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:01:25,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:25,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:25,694 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:25,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:25,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:25,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190467953] [2023-11-26 12:01:25,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:01:25,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413403655] [2023-11-26 12:01:25,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413403655] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:25,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:01:25,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-26 12:01:25,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779159261] [2023-11-26 12:01:25,855 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:25,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:01:25,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:25,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:01:25,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:01:25,857 INFO L87 Difference]: Start difference. First operand 145 states and 155 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:26,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:26,253 INFO L93 Difference]: Finished difference Result 167 states and 171 transitions. [2023-11-26 12:01:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:01:26,256 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2023-11-26 12:01:26,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:26,257 INFO L225 Difference]: With dead ends: 167 [2023-11-26 12:01:26,257 INFO L226 Difference]: Without dead ends: 164 [2023-11-26 12:01:26,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:01:26,258 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 190 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:26,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 111 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 12:01:26,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-26 12:01:26,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2023-11-26 12:01:26,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 125 states have (on average 1.24) internal successors, (155), 147 states have internal predecessors, (155), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:01:26,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 161 transitions. [2023-11-26 12:01:26,267 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 161 transitions. Word has length 39 [2023-11-26 12:01:26,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:26,267 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 161 transitions. [2023-11-26 12:01:26,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:26,268 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 161 transitions. [2023-11-26 12:01:26,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-26 12:01:26,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:26,274 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:26,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:26,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:26,480 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:26,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:26,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1972442927, now seen corresponding path program 1 times [2023-11-26 12:01:26,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:26,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854005817] [2023-11-26 12:01:26,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:26,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:26,502 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:01:26,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1237923714] [2023-11-26 12:01:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:26,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:26,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:26,504 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:26,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 12:01:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:26,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:01:26,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:26,682 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:26,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:26,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:26,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854005817] [2023-11-26 12:01:26,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:01:26,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237923714] [2023-11-26 12:01:26,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237923714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:26,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:26,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:01:26,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383769669] [2023-11-26 12:01:26,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:26,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:01:26,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:26,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:01:26,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:26,688 INFO L87 Difference]: Start difference. First operand 152 states and 161 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:26,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:26,835 INFO L93 Difference]: Finished difference Result 152 states and 161 transitions. [2023-11-26 12:01:26,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:01:26,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2023-11-26 12:01:26,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:26,837 INFO L225 Difference]: With dead ends: 152 [2023-11-26 12:01:26,837 INFO L226 Difference]: Without dead ends: 121 [2023-11-26 12:01:26,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 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 12:01:26,838 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 72 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:26,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 41 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:26,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-26 12:01:26,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-11-26 12:01:26,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 116 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:01:26,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 125 transitions. [2023-11-26 12:01:26,850 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 125 transitions. Word has length 47 [2023-11-26 12:01:26,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:26,850 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 125 transitions. [2023-11-26 12:01:26,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:26,850 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 125 transitions. [2023-11-26 12:01:26,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-26 12:01:26,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:26,852 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:26,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:27,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:27,058 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:27,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:27,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1974782267, now seen corresponding path program 1 times [2023-11-26 12:01:27,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:27,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473751880] [2023-11-26 12:01:27,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:27,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:27,071 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:01:27,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419115781] [2023-11-26 12:01:27,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:27,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:27,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:27,073 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:27,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 12:01:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:27,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:01:27,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:27,207 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:01:27,207 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:27,294 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:01:27,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:27,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473751880] [2023-11-26 12:01:27,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:01:27,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419115781] [2023-11-26 12:01:27,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419115781] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:27,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:01:27,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-26 12:01:27,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143892510] [2023-11-26 12:01:27,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:27,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:01:27,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:27,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:01:27,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:01:27,298 INFO L87 Difference]: Start difference. First operand 121 states and 125 transitions. Second operand has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 12:01:27,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:27,340 INFO L93 Difference]: Finished difference Result 215 states and 221 transitions. [2023-11-26 12:01:27,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:01:27,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 63 [2023-11-26 12:01:27,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:27,342 INFO L225 Difference]: With dead ends: 215 [2023-11-26 12:01:27,343 INFO L226 Difference]: Without dead ends: 214 [2023-11-26 12:01:27,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:01:27,344 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 50 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:27,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 250 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:27,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-11-26 12:01:27,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 170. [2023-11-26 12:01:27,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 154 states have (on average 1.155844155844156) internal successors, (178), 163 states have internal predecessors, (178), 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 12:01:27,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 188 transitions. [2023-11-26 12:01:27,355 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 188 transitions. Word has length 63 [2023-11-26 12:01:27,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:27,355 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 188 transitions. [2023-11-26 12:01:27,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 6 states have internal predecessors, (107), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 12:01:27,356 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 188 transitions. [2023-11-26 12:01:27,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 12:01:27,357 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:27,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:27,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:27,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 12:01:27,560 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:27,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:27,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1891986505, now seen corresponding path program 1 times [2023-11-26 12:01:27,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:27,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050688958] [2023-11-26 12:01:27,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:27,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:27,580 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:01:27,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013416753] [2023-11-26 12:01:27,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:27,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:27,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:27,589 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:27,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 12:01:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:27,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:01:27,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:27,740 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:01:27,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:01:27,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:27,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050688958] [2023-11-26 12:01:27,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:01:27,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013416753] [2023-11-26 12:01:27,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013416753] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:27,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:01:27,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-26 12:01:27,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742270478] [2023-11-26 12:01:27,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:27,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:01:27,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:27,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:01:27,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:01:27,920 INFO L87 Difference]: Start difference. First operand 170 states and 188 transitions. Second operand has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 8 states have internal predecessors, (115), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 12:01:28,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:28,199 INFO L93 Difference]: Finished difference Result 192 states and 203 transitions. [2023-11-26 12:01:28,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:01:28,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 8 states have internal predecessors, (115), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 67 [2023-11-26 12:01:28,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:28,202 INFO L225 Difference]: With dead ends: 192 [2023-11-26 12:01:28,202 INFO L226 Difference]: Without dead ends: 171 [2023-11-26 12:01:28,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:01:28,203 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 152 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:28,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 131 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:28,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-11-26 12:01:28,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 168. [2023-11-26 12:01:28,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 154 states have (on average 1.0909090909090908) internal successors, (168), 161 states have internal predecessors, (168), 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 12:01:28,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 178 transitions. [2023-11-26 12:01:28,215 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 178 transitions. Word has length 67 [2023-11-26 12:01:28,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:28,216 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 178 transitions. [2023-11-26 12:01:28,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 8 states have internal predecessors, (115), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 12:01:28,216 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 178 transitions. [2023-11-26 12:01:28,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-26 12:01:28,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:28,218 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-11-26 12:01:28,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:28,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 12:01:28,424 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:28,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:28,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1648160619, now seen corresponding path program 1 times [2023-11-26 12:01:28,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:28,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578593191] [2023-11-26 12:01:28,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:28,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:28,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:01:28,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [397185345] [2023-11-26 12:01:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:28,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:28,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:28,462 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:28,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 12:01:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:28,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-26 12:01:28,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 12:01:28,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 12:01:29,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:29,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578593191] [2023-11-26 12:01:29,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:01:29,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397185345] [2023-11-26 12:01:29,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397185345] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:29,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:01:29,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2023-11-26 12:01:29,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853402389] [2023-11-26 12:01:29,978 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:29,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-26 12:01:29,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:29,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-26 12:01:29,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2023-11-26 12:01:29,980 INFO L87 Difference]: Start difference. First operand 168 states and 178 transitions. Second operand has 16 states, 15 states have (on average 11.666666666666666) internal successors, (175), 16 states have internal predecessors, (175), 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 12:01:31,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:31,175 INFO L93 Difference]: Finished difference Result 197 states and 204 transitions. [2023-11-26 12:01:31,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-26 12:01:31,175 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.666666666666666) internal successors, (175), 16 states have internal predecessors, (175), 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) Word has length 102 [2023-11-26 12:01:31,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:31,177 INFO L225 Difference]: With dead ends: 197 [2023-11-26 12:01:31,177 INFO L226 Difference]: Without dead ends: 196 [2023-11-26 12:01:31,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=226, Invalid=374, Unknown=0, NotChecked=0, Total=600 [2023-11-26 12:01:31,178 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 336 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:31,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 165 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 12:01:31,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-26 12:01:31,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 167. [2023-11-26 12:01:31,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 154 states have (on average 1.077922077922078) internal successors, (166), 160 states have internal predecessors, (166), 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 12:01:31,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 176 transitions. [2023-11-26 12:01:31,190 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 176 transitions. Word has length 102 [2023-11-26 12:01:31,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:31,191 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 176 transitions. [2023-11-26 12:01:31,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.666666666666666) internal successors, (175), 16 states have internal predecessors, (175), 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 12:01:31,192 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 176 transitions. [2023-11-26 12:01:31,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 12:01:31,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:31,200 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-26 12:01:31,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:31,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 12:01:31,407 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-26 12:01:31,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:31,407 INFO L85 PathProgramCache]: Analyzing trace with hash 286920487, now seen corresponding path program 2 times [2023-11-26 12:01:31,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:31,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806322169] [2023-11-26 12:01:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:31,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:31,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:01:31,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545713956] [2023-11-26 12:01:31,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:01:31,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:31,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:31,423 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:31,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4eb02ff-5cd7-4188-83aa-a10bc318eca5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 12:01:31,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:01:31,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:01:31,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 12:01:31,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 3 proven. 99 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-26 12:01:31,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:40,029 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~y~0#1| (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 2) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 3)))) (or (not (= (mod .cse0 6) 0)) (< (+ (* |c_ULTIMATE.start_main_~y~0#1| 6) (div .cse0 6) (* (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 2)) 1537228672809129297))) is different from false [2023-11-26 12:01:48,137 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)