./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83658644ab59c175befe18129a61686a7f8ef5283dc72c7f2a03865a8223d162 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:26:30,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:26:30,303 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 22:26:30,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:26:30,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:26:30,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:26:30,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:26:30,360 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:26:30,361 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:26:30,366 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:26:30,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:26:30,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:26:30,368 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:26:30,369 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:26:30,370 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:26:30,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:26:30,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:26:30,372 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:26:30,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:26:30,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:26:30,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:26:30,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:26:30,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:26:30,375 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:26:30,375 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 22:26:30,375 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:26:30,376 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:26:30,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:26:30,377 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:26:30,378 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:26:30,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:26:30,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:26:30,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:26:30,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:26:30,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:26:30,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:26:30,381 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:26:30,381 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:26:30,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:26:30,382 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:26:30,382 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:26:30,383 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:26:30,383 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:26:30,383 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:26:30,384 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_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83658644ab59c175befe18129a61686a7f8ef5283dc72c7f2a03865a8223d162 [2023-11-23 22:26:30,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:26:30,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:26:30,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:26:30,755 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:26:30,756 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:26:30,757 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c [2023-11-23 22:26:33,989 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:26:34,225 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:26:34,226 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c [2023-11-23 22:26:34,234 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/data/823f3ced7/887337310aca408c90ed78f7af46ec67/FLAG5d8b85a21 [2023-11-23 22:26:34,251 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/data/823f3ced7/887337310aca408c90ed78f7af46ec67 [2023-11-23 22:26:34,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:26:34,257 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:26:34,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:26:34,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:26:34,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:26:34,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6045d675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34, skipping insertion in model container [2023-11-23 22:26:34,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,295 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:26:34,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:26:34,491 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:26:34,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:26:34,533 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:26:34,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34 WrapperNode [2023-11-23 22:26:34,533 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:26:34,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:26:34,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:26:34,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:26:34,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,585 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2023-11-23 22:26:34,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:26:34,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:26:34,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:26:34,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:26:34,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,611 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,620 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:26:34,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:26:34,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:26:34,639 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:26:34,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:26:34,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (1/1) ... [2023-11-23 22:26:34,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:26:34,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:34,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:26:34,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:26:34,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:26:34,724 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:26:34,725 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:26:34,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:26:34,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:26:34,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:26:34,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 22:26:34,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 22:26:34,786 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:26:34,789 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:26:35,118 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:26:35,149 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:26:35,149 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:26:35,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:26:35 BoogieIcfgContainer [2023-11-23 22:26:35,153 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:26:35,159 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:26:35,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:26:35,164 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:26:35,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:26:34" (1/3) ... [2023-11-23 22:26:35,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34af0eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:26:35, skipping insertion in model container [2023-11-23 22:26:35,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:34" (2/3) ... [2023-11-23 22:26:35,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34af0eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:26:35, skipping insertion in model container [2023-11-23 22:26:35,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:26:35" (3/3) ... [2023-11-23 22:26:35,171 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound2.c [2023-11-23 22:26:35,220 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:26:35,221 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-23 22:26:35,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:26:35,295 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;@74f68ca6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:26:35,295 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-23 22:26:35,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 34 states have (on average 1.7941176470588236) internal successors, (61), 56 states have internal predecessors, (61), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 22:26:35,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 22:26:35,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:35,307 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:35,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:35,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:35,313 INFO L85 PathProgramCache]: Analyzing trace with hash 374099024, now seen corresponding path program 1 times [2023-11-23 22:26:35,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:35,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921701572] [2023-11-23 22:26:35,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:35,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:35,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:35,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921701572] [2023-11-23 22:26:35,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 22:26:35,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149003267] [2023-11-23 22:26:35,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:35,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:35,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:35,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:35,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:26:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:35,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 22:26:35,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:26:35,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:35,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149003267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:35,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:35,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:35,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896078432] [2023-11-23 22:26:35,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:35,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:26:35,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:35,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:26:35,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:26:35,646 INFO L87 Difference]: Start difference. First operand has 63 states, 34 states have (on average 1.7941176470588236) internal successors, (61), 56 states have internal predecessors, (61), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 22:26:35,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:35,699 INFO L93 Difference]: Finished difference Result 124 states and 139 transitions. [2023-11-23 22:26:35,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:26:35,702 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2023-11-23 22:26:35,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:35,708 INFO L225 Difference]: With dead ends: 124 [2023-11-23 22:26:35,708 INFO L226 Difference]: Without dead ends: 60 [2023-11-23 22:26:35,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:26:35,715 INFO L413 NwaCegarLoop]: 63 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, 63 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 [2023-11-23 22:26:35,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:26:35,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-23 22:26:35,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-23 22:26:35,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 54 states have internal predecessors, (55), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 22:26:35,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2023-11-23 22:26:35,758 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 15 [2023-11-23 22:26:35,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:35,759 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2023-11-23 22:26:35,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 22:26:35,759 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2023-11-23 22:26:35,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 22:26:35,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:35,761 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:35,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:35,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 22:26:35,982 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:35,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:35,983 INFO L85 PathProgramCache]: Analyzing trace with hash 689521483, now seen corresponding path program 1 times [2023-11-23 22:26:35,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:35,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067860288] [2023-11-23 22:26:35,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:35,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:36,001 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:36,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1000063223] [2023-11-23 22:26:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:36,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:36,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:36,005 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:36,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:26:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:36,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:26:36,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:36,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:36,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:36,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:36,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067860288] [2023-11-23 22:26:36,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:36,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000063223] [2023-11-23 22:26:36,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000063223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:36,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:36,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:36,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549386682] [2023-11-23 22:26:36,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:36,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:36,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:36,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:36,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:36,131 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:26:36,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:36,288 INFO L93 Difference]: Finished difference Result 95 states and 98 transitions. [2023-11-23 22:26:36,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:36,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-11-23 22:26:36,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:36,290 INFO L225 Difference]: With dead ends: 95 [2023-11-23 22:26:36,291 INFO L226 Difference]: Without dead ends: 85 [2023-11-23 22:26:36,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:36,293 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 22 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:36,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 66 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:26:36,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-23 22:26:36,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2023-11-23 22:26:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 72 states have internal predecessors, (80), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 22:26:36,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2023-11-23 22:26:36,306 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 15 [2023-11-23 22:26:36,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:36,308 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2023-11-23 22:26:36,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:26:36,309 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2023-11-23 22:26:36,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 22:26:36,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:36,310 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:36,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-23 22:26:36,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:36,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:36,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:36,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1460162033, now seen corresponding path program 1 times [2023-11-23 22:26:36,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:36,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007637671] [2023-11-23 22:26:36,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:36,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:36,528 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:36,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [518985443] [2023-11-23 22:26:36,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:36,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:36,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:36,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:36,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:26:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:36,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:26:36,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:36,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:36,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:36,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:36,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007637671] [2023-11-23 22:26:36,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:36,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518985443] [2023-11-23 22:26:36,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518985443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:36,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:36,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:36,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436776630] [2023-11-23 22:26:36,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:36,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:36,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:36,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:36,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:36,661 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:26:36,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:36,763 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2023-11-23 22:26:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:36,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-23 22:26:36,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:36,766 INFO L225 Difference]: With dead ends: 85 [2023-11-23 22:26:36,766 INFO L226 Difference]: Without dead ends: 83 [2023-11-23 22:26:36,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:36,768 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 16 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:36,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 64 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:26:36,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-23 22:26:36,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2023-11-23 22:26:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 72 states have internal predecessors, (78), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 22:26:36,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2023-11-23 22:26:36,780 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 19 [2023-11-23 22:26:36,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:36,781 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2023-11-23 22:26:36,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:26:36,781 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2023-11-23 22:26:36,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 22:26:36,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:36,782 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:36,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:36,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:36,998 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:36,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:36,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1979617290, now seen corresponding path program 1 times [2023-11-23 22:26:36,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:36,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204795305] [2023-11-23 22:26:36,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:36,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:37,013 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:37,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1685309318] [2023-11-23 22:26:37,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:37,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:37,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:37,024 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:37,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:26:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:37,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:26:37,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:37,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:37,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:37,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204795305] [2023-11-23 22:26:37,176 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:37,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685309318] [2023-11-23 22:26:37,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685309318] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:37,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:37,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:26:37,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731660581] [2023-11-23 22:26:37,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:37,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:26:37,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:37,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:26:37,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:37,180 INFO L87 Difference]: Start difference. First operand 79 states and 86 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:26:37,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:37,422 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2023-11-23 22:26:37,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:26:37,423 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-23 22:26:37,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:37,424 INFO L225 Difference]: With dead ends: 79 [2023-11-23 22:26:37,424 INFO L226 Difference]: Without dead ends: 70 [2023-11-23 22:26:37,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:37,426 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 41 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:37,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 41 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:26:37,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-23 22:26:37,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-23 22:26:37,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 63 states have internal predecessors, (67), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 22:26:37,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2023-11-23 22:26:37,436 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 20 [2023-11-23 22:26:37,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:37,437 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2023-11-23 22:26:37,437 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:26:37,437 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2023-11-23 22:26:37,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 22:26:37,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:37,439 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:37,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:37,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-23 22:26:37,646 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:37,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:37,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1741584869, now seen corresponding path program 1 times [2023-11-23 22:26:37,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:37,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746980627] [2023-11-23 22:26:37,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:37,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:37,661 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:37,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [328254132] [2023-11-23 22:26:37,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:37,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:37,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:37,663 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:37,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:26:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:37,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:26:37,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:37,764 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:37,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:37,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:37,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746980627] [2023-11-23 22:26:37,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:37,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328254132] [2023-11-23 22:26:37,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328254132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:37,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:37,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:37,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027767084] [2023-11-23 22:26:37,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:37,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:37,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:37,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:37,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:37,768 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:26:37,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:37,793 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2023-11-23 22:26:37,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:37,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2023-11-23 22:26:37,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:37,797 INFO L225 Difference]: With dead ends: 70 [2023-11-23 22:26:37,797 INFO L226 Difference]: Without dead ends: 69 [2023-11-23 22:26:37,797 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 [2023-11-23 22:26:37,798 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 25 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 57 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 [2023-11-23 22:26:37,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 57 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:26:37,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-23 22:26:37,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-11-23 22:26:37,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 62 states have internal predecessors, (65), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 22:26:37,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2023-11-23 22:26:37,808 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 29 [2023-11-23 22:26:37,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:37,808 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2023-11-23 22:26:37,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:26:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2023-11-23 22:26:37,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 22:26:37,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:37,815 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:37,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:38,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:38,030 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:38,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:38,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1845443838, now seen corresponding path program 1 times [2023-11-23 22:26:38,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:38,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319086461] [2023-11-23 22:26:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:38,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:38,049 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:38,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [264975593] [2023-11-23 22:26:38,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:38,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:38,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:38,054 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:38,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 22:26:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:38,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:26:38,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:38,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:38,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:38,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:38,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319086461] [2023-11-23 22:26:38,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:38,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264975593] [2023-11-23 22:26:38,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264975593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:38,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:38,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:38,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138026825] [2023-11-23 22:26:38,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:38,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:38,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:38,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:38,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:38,135 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:26:38,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:38,153 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2023-11-23 22:26:38,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:38,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-11-23 22:26:38,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:38,155 INFO L225 Difference]: With dead ends: 78 [2023-11-23 22:26:38,155 INFO L226 Difference]: Without dead ends: 77 [2023-11-23 22:26:38,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:38,157 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 10 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:38,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 90 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:26:38,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-23 22:26:38,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 69. [2023-11-23 22:26:38,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 62 states have internal predecessors, (64), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 22:26:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2023-11-23 22:26:38,167 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 30 [2023-11-23 22:26:38,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:38,167 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2023-11-23 22:26:38,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:26:38,167 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2023-11-23 22:26:38,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 22:26:38,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:38,169 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:38,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:38,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 22:26:38,389 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:38,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:38,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1374224772, now seen corresponding path program 1 times [2023-11-23 22:26:38,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:38,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22143376] [2023-11-23 22:26:38,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:38,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:38,409 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:38,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [934355009] [2023-11-23 22:26:38,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:38,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:38,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:38,427 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:38,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 22:26:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:38,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:26:38,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:40,675 WARN L876 $PredicateComparison]: unable to prove that (or (< 0 (+ |c_ULTIMATE.start_main_~x~0#1| 9223372034707292161)) (exists ((v_z_1 Int)) (and (<= v_z_1 4294967295) (exists ((|v_ULTIMATE.start_main_~x~0#1_53| Int)) (let ((.cse0 (* |v_ULTIMATE.start_main_~x~0#1_53| v_z_1))) (and (<= |v_ULTIMATE.start_main_~x~0#1_53| (+ .cse0 9223372036854775808)) (<= .cse0 (+ |v_ULTIMATE.start_main_~x~0#1_53| |c_ULTIMATE.start_main_~x~0#1|))))) (<= 1 v_z_1)))) is different from true [2023-11-23 22:26:40,676 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:40,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:40,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:40,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22143376] [2023-11-23 22:26:40,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:40,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934355009] [2023-11-23 22:26:40,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934355009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:40,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:40,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:26:40,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758147868] [2023-11-23 22:26:40,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:40,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:26:40,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:40,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:26:40,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-23 22:26:40,678 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:26:41,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:41,455 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2023-11-23 22:26:41,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:26:41,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-11-23 22:26:41,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:41,457 INFO L225 Difference]: With dead ends: 69 [2023-11-23 22:26:41,457 INFO L226 Difference]: Without dead ends: 68 [2023-11-23 22:26:41,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-23 22:26:41,459 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 17 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:41,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 52 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 71 Unchecked, 0.8s Time] [2023-11-23 22:26:41,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-23 22:26:41,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-23 22:26:41,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 61 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 22:26:41,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2023-11-23 22:26:41,468 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2023-11-23 22:26:41,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:41,469 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2023-11-23 22:26:41,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 22:26:41,469 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2023-11-23 22:26:41,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 22:26:41,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:41,470 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:41,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:41,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:41,674 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:41,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:41,675 INFO L85 PathProgramCache]: Analyzing trace with hash 348705122, now seen corresponding path program 1 times [2023-11-23 22:26:41,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:41,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128602715] [2023-11-23 22:26:41,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:41,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:41,688 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:41,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2003272098] [2023-11-23 22:26:41,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:41,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:41,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:41,690 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:41,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 22:26:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:41,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:26:41,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:41,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:41,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:41,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128602715] [2023-11-23 22:26:41,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:41,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003272098] [2023-11-23 22:26:41,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003272098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:41,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:41,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:26:41,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499616136] [2023-11-23 22:26:41,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:41,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:26:41,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:41,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:26:41,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:41,808 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:26:41,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:41,936 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2023-11-23 22:26:41,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:26:41,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2023-11-23 22:26:41,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:41,937 INFO L225 Difference]: With dead ends: 75 [2023-11-23 22:26:41,938 INFO L226 Difference]: Without dead ends: 74 [2023-11-23 22:26:41,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:41,939 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:41,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 74 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:26:41,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-23 22:26:41,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2023-11-23 22:26:41,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 63 states have internal predecessors, (65), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 22:26:41,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2023-11-23 22:26:41,949 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 32 [2023-11-23 22:26:41,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:41,949 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2023-11-23 22:26:41,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:26:41,950 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2023-11-23 22:26:41,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 22:26:41,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:41,951 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:41,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:42,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:42,167 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:42,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:42,168 INFO L85 PathProgramCache]: Analyzing trace with hash -2075043010, now seen corresponding path program 1 times [2023-11-23 22:26:42,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:42,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456881019] [2023-11-23 22:26:42,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:42,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:42,182 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:42,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513935830] [2023-11-23 22:26:42,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:42,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:42,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:42,186 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:42,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 22:26:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:42,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:26:42,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:42,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:42,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:42,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:42,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456881019] [2023-11-23 22:26:42,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:42,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513935830] [2023-11-23 22:26:42,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513935830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:42,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:42,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:26:42,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458971678] [2023-11-23 22:26:42,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:42,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:26:42,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:42,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:26:42,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:42,419 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:26:42,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:42,685 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2023-11-23 22:26:42,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:26:42,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2023-11-23 22:26:42,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:42,687 INFO L225 Difference]: With dead ends: 77 [2023-11-23 22:26:42,687 INFO L226 Difference]: Without dead ends: 76 [2023-11-23 22:26:42,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:42,688 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 10 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:42,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 65 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:26:42,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-23 22:26:42,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2023-11-23 22:26:42,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 54 states have (on average 1.2222222222222223) internal successors, (66), 64 states have internal predecessors, (66), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 22:26:42,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2023-11-23 22:26:42,709 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 33 [2023-11-23 22:26:42,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:42,711 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2023-11-23 22:26:42,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:26:42,711 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2023-11-23 22:26:42,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 22:26:42,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:42,715 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:42,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:42,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:42,916 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:42,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:42,917 INFO L85 PathProgramCache]: Analyzing trace with hash 98176228, now seen corresponding path program 1 times [2023-11-23 22:26:42,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:42,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425193076] [2023-11-23 22:26:42,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:42,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:42,934 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:42,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157637161] [2023-11-23 22:26:42,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:42,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:42,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:42,945 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:42,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 22:26:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:42,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:26:42,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:43,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:43,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:26:43,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:43,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425193076] [2023-11-23 22:26:43,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:43,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157637161] [2023-11-23 22:26:43,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157637161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:43,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:43,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:26:43,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547409228] [2023-11-23 22:26:43,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:43,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:26:43,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:43,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:26:43,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:43,041 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:26:45,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-23 22:26:45,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:45,132 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2023-11-23 22:26:45,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:26:45,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2023-11-23 22:26:45,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:45,134 INFO L225 Difference]: With dead ends: 71 [2023-11-23 22:26:45,134 INFO L226 Difference]: Without dead ends: 64 [2023-11-23 22:26:45,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:45,135 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 36 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:45,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 57 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 22:26:45,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-23 22:26:45,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-11-23 22:26:45,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 57 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 22:26:45,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2023-11-23 22:26:45,143 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 34 [2023-11-23 22:26:45,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:45,143 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2023-11-23 22:26:45,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 22:26:45,144 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2023-11-23 22:26:45,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 22:26:45,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:45,145 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:45,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:45,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:45,346 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:45,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:45,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1539691752, now seen corresponding path program 1 times [2023-11-23 22:26:45,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:45,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419377037] [2023-11-23 22:26:45,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:45,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:45,357 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:45,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887489937] [2023-11-23 22:26:45,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:45,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:45,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:45,359 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:45,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 22:26:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:45,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 22:26:45,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:26:45,589 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:26:49,690 WARN L876 $PredicateComparison]: unable to prove that (< (let ((.cse0 (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296))) (* .cse0 .cse0)) 9223372036854775808) is different from true [2023-11-23 22:26:53,848 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:26:53,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:53,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419377037] [2023-11-23 22:26:53,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:53,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887489937] [2023-11-23 22:26:53,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887489937] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:26:53,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:26:53,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-23 22:26:53,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932538350] [2023-11-23 22:26:53,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:26:53,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:26:53,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:53,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:26:53,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=40, Unknown=1, NotChecked=12, Total=72 [2023-11-23 22:26:53,852 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 22:26:54,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:54,111 INFO L93 Difference]: Finished difference Result 100 states and 104 transitions. [2023-11-23 22:26:54,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:26:54,111 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 36 [2023-11-23 22:26:54,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:54,112 INFO L225 Difference]: With dead ends: 100 [2023-11-23 22:26:54,113 INFO L226 Difference]: Without dead ends: 99 [2023-11-23 22:26:54,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=29, Invalid=64, Unknown=1, NotChecked=16, Total=110 [2023-11-23 22:26:54,114 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 82 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 99 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:54,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 100 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 178 Invalid, 0 Unknown, 99 Unchecked, 0.2s Time] [2023-11-23 22:26:54,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-23 22:26:54,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 85. [2023-11-23 22:26:54,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 68 states have (on average 1.25) internal successors, (85), 77 states have internal predecessors, (85), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 22:26:54,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2023-11-23 22:26:54,124 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 36 [2023-11-23 22:26:54,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:54,125 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2023-11-23 22:26:54,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 22:26:54,125 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2023-11-23 22:26:54,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 22:26:54,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:54,127 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:54,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:54,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:54,342 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:54,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:54,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1293692697, now seen corresponding path program 1 times [2023-11-23 22:26:54,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:54,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540824636] [2023-11-23 22:26:54,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:54,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:54,353 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:54,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [252859008] [2023-11-23 22:26:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:54,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:54,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:54,362 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:54,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 22:26:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:54,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 22:26:54,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:54,624 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:26:54,624 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:26:54,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:54,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540824636] [2023-11-23 22:26:54,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:54,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252859008] [2023-11-23 22:26:54,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252859008] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:26:54,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:26:54,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-23 22:26:54,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837497623] [2023-11-23 22:26:54,811 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:26:54,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:26:54,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:54,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:26:54,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:26:54,813 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 22:26:55,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:55,010 INFO L93 Difference]: Finished difference Result 94 states and 98 transitions. [2023-11-23 22:26:55,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:26:55,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2023-11-23 22:26:55,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:55,012 INFO L225 Difference]: With dead ends: 94 [2023-11-23 22:26:55,012 INFO L226 Difference]: Without dead ends: 91 [2023-11-23 22:26:55,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:26:55,013 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 56 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:55,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 81 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:26:55,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-23 22:26:55,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2023-11-23 22:26:55,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 70 states have (on average 1.2142857142857142) internal successors, (85), 79 states have internal predecessors, (85), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 22:26:55,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2023-11-23 22:26:55,022 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 39 [2023-11-23 22:26:55,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:55,023 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2023-11-23 22:26:55,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 22:26:55,023 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2023-11-23 22:26:55,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 22:26:55,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:55,027 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:55,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:55,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 22:26:55,249 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:55,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:55,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1449767892, now seen corresponding path program 1 times [2023-11-23 22:26:55,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:55,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043754719] [2023-11-23 22:26:55,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:55,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:55,269 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:55,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [262800862] [2023-11-23 22:26:55,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:55,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:55,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:55,272 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:55,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 22:26:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:55,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 22:26:55,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:55,540 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:26:55,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:26:55,890 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:55,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:55,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043754719] [2023-11-23 22:26:55,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:55,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262800862] [2023-11-23 22:26:55,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262800862] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:26:55,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:26:55,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2023-11-23 22:26:55,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604028260] [2023-11-23 22:26:55,891 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:26:55,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:26:55,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:55,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:26:55,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:26:55,893 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-23 22:26:56,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:26:56,952 INFO L93 Difference]: Finished difference Result 92 states and 97 transitions. [2023-11-23 22:26:56,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:26:56,953 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 40 [2023-11-23 22:26:56,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:26:56,954 INFO L225 Difference]: With dead ends: 92 [2023-11-23 22:26:56,954 INFO L226 Difference]: Without dead ends: 91 [2023-11-23 22:26:56,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:26:56,955 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 96 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:26:56,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 120 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 22:26:56,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-23 22:26:56,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 86. [2023-11-23 22:26:56,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 78 states have internal predecessors, (83), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 22:26:56,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2023-11-23 22:26:56,965 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 93 transitions. Word has length 40 [2023-11-23 22:26:56,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:26:56,966 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 93 transitions. [2023-11-23 22:26:56,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-23 22:26:56,966 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2023-11-23 22:26:56,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-23 22:26:56,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:26:56,967 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:56,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 22:26:57,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:57,182 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:26:57,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:57,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1657538610, now seen corresponding path program 1 times [2023-11-23 22:26:57,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:57,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625850791] [2023-11-23 22:26:57,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:57,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:57,200 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:26:57,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1712882601] [2023-11-23 22:26:57,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:57,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:26:57,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:57,206 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:26:57,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 22:26:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:57,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 22:26:57,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:26:57,519 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:57,519 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:26:57,783 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:26:57,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:57,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625850791] [2023-11-23 22:26:57,784 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:26:57,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712882601] [2023-11-23 22:26:57,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712882601] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:26:57,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:26:57,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 22:26:57,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220190489] [2023-11-23 22:26:57,785 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:26:57,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:26:57,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:57,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:26:57,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:26:57,787 INFO L87 Difference]: Start difference. First operand 86 states and 93 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 22:27:00,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-23 22:27:02,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:02,192 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2023-11-23 22:27:02,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:27:02,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2023-11-23 22:27:02,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:02,193 INFO L225 Difference]: With dead ends: 100 [2023-11-23 22:27:02,194 INFO L226 Difference]: Without dead ends: 98 [2023-11-23 22:27:02,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:27:02,195 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 39 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:02,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 132 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2023-11-23 22:27:02,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-23 22:27:02,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 91. [2023-11-23 22:27:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 76 states have (on average 1.144736842105263) internal successors, (87), 83 states have internal predecessors, (87), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 22:27:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 97 transitions. [2023-11-23 22:27:02,205 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 97 transitions. Word has length 42 [2023-11-23 22:27:02,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:02,206 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 97 transitions. [2023-11-23 22:27:02,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 22:27:02,206 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions. [2023-11-23 22:27:02,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-23 22:27:02,207 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:02,207 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:02,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:02,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:02,429 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:27:02,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:02,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2137112547, now seen corresponding path program 1 times [2023-11-23 22:27:02,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:02,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379572683] [2023-11-23 22:27:02,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:02,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:02,440 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:02,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721430312] [2023-11-23 22:27:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:02,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:02,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:02,442 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:02,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 22:27:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:02,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:27:02,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:02,565 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 22:27:02,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:27:02,648 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 22:27:02,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:02,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379572683] [2023-11-23 22:27:02,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:02,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721430312] [2023-11-23 22:27:02,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721430312] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:27:02,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:27:02,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-23 22:27:02,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330244556] [2023-11-23 22:27:02,649 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:27:02,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:27:02,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:02,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:27:02,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:27:02,651 INFO L87 Difference]: Start difference. First operand 91 states and 97 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 22:27:02,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:02,701 INFO L93 Difference]: Finished difference Result 110 states and 115 transitions. [2023-11-23 22:27:02,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:27:02,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 53 [2023-11-23 22:27:02,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:02,703 INFO L225 Difference]: With dead ends: 110 [2023-11-23 22:27:02,703 INFO L226 Difference]: Without dead ends: 109 [2023-11-23 22:27:02,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:27:02,706 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 43 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:02,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 137 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:27:02,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-23 22:27:02,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 90. [2023-11-23 22:27:02,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 76 states have (on average 1.118421052631579) internal successors, (85), 82 states have internal predecessors, (85), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 22:27:02,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2023-11-23 22:27:02,717 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 53 [2023-11-23 22:27:02,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:02,718 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2023-11-23 22:27:02,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-23 22:27:02,718 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2023-11-23 22:27:02,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-23 22:27:02,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:02,719 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:02,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:02,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:02,934 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:27:02,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:02,935 INFO L85 PathProgramCache]: Analyzing trace with hash 769530371, now seen corresponding path program 1 times [2023-11-23 22:27:02,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:02,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139675225] [2023-11-23 22:27:02,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:02,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:02,960 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:02,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016635757] [2023-11-23 22:27:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:02,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:02,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:02,965 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:02,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 22:27:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:03,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 22:27:03,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 22:27:03,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:27:05,704 WARN L876 $PredicateComparison]: unable to prove that (< (let ((.cse0 (mod (+ 4294967295 |c_ULTIMATE.start_main_~z~0#1|) 4294967296))) (+ .cse0 (* |c_ULTIMATE.start_main_~x~0#1| (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) .cse0))) 9223372036854775807) is different from true [2023-11-23 22:27:16,140 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 11 not checked. [2023-11-23 22:27:16,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:16,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139675225] [2023-11-23 22:27:16,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:16,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016635757] [2023-11-23 22:27:16,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016635757] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:27:16,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:27:16,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-23 22:27:16,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217138046] [2023-11-23 22:27:16,142 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:27:16,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 22:27:16,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:16,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 22:27:16,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=100, Unknown=1, NotChecked=20, Total=156 [2023-11-23 22:27:16,144 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-23 22:27:18,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-23 22:27:19,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:19,047 INFO L93 Difference]: Finished difference Result 113 states and 119 transitions. [2023-11-23 22:27:19,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:27:19,048 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 55 [2023-11-23 22:27:19,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:19,049 INFO L225 Difference]: With dead ends: 113 [2023-11-23 22:27:19,049 INFO L226 Difference]: Without dead ends: 111 [2023-11-23 22:27:19,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=63, Invalid=180, Unknown=1, NotChecked=28, Total=272 [2023-11-23 22:27:19,050 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 103 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 99 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:19,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 164 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 327 Invalid, 1 Unknown, 99 Unchecked, 2.7s Time] [2023-11-23 22:27:19,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-23 22:27:19,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 97. [2023-11-23 22:27:19,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 82 states have (on average 1.1219512195121952) internal successors, (92), 88 states have internal predecessors, (92), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 22:27:19,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2023-11-23 22:27:19,062 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 55 [2023-11-23 22:27:19,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:19,063 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2023-11-23 22:27:19,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-23 22:27:19,063 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2023-11-23 22:27:19,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 22:27:19,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:19,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:19,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:19,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:19,278 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:27:19,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:19,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1914362179, now seen corresponding path program 1 times [2023-11-23 22:27:19,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:19,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379458975] [2023-11-23 22:27:19,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:19,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:19,294 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:19,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120682089] [2023-11-23 22:27:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:19,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:19,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:19,295 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:19,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 22:27:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:27:19,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:27:19,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:20,149 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 22:27:20,150 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:27:30,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:30,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379458975] [2023-11-23 22:27:30,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:30,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120682089] [2023-11-23 22:27:30,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120682089] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:27:30,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:27:30,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-23 22:27:30,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381564524] [2023-11-23 22:27:30,577 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:27:30,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:27:30,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:30,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:27:30,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:27:30,579 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 22:27:31,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:31,763 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2023-11-23 22:27:31,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:27:31,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2023-11-23 22:27:31,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:31,765 INFO L225 Difference]: With dead ends: 97 [2023-11-23 22:27:31,765 INFO L226 Difference]: Without dead ends: 91 [2023-11-23 22:27:31,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:27:31,766 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 51 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:31,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 73 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 22:27:31,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-23 22:27:31,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-23 22:27:31,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 77 states have (on average 1.0909090909090908) internal successors, (84), 82 states have internal predecessors, (84), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 22:27:31,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 96 transitions. [2023-11-23 22:27:31,775 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 96 transitions. Word has length 56 [2023-11-23 22:27:31,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:31,776 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 96 transitions. [2023-11-23 22:27:31,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 22:27:31,776 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 96 transitions. [2023-11-23 22:27:31,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 22:27:31,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:27:31,777 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:27:31,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:31,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:31,990 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-23 22:27:31,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:27:31,991 INFO L85 PathProgramCache]: Analyzing trace with hash -781532890, now seen corresponding path program 2 times [2023-11-23 22:27:31,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:27:31,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066235498] [2023-11-23 22:27:31,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:27:31,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:27:31,999 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:27:31,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1071486520] [2023-11-23 22:27:31,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:27:31,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:27:32,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:27:32,001 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:27:32,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 22:27:32,048 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:27:32,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:27:32,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:27:32,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:27:32,227 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 22:27:32,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:27:32,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:27:32,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066235498] [2023-11-23 22:27:32,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:27:32,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071486520] [2023-11-23 22:27:32,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071486520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:27:32,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:27:32,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 22:27:32,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666269242] [2023-11-23 22:27:32,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:27:32,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:27:32,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:27:32,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:27:32,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:27:32,231 INFO L87 Difference]: Start difference. First operand 91 states and 96 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 22:27:32,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:27:32,275 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2023-11-23 22:27:32,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:27:32,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 62 [2023-11-23 22:27:32,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:27:32,276 INFO L225 Difference]: With dead ends: 95 [2023-11-23 22:27:32,276 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 22:27:32,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:27:32,278 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:27:32,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 121 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:27:32,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 22:27:32,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 22:27:32,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:27:32,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 22:27:32,279 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2023-11-23 22:27:32,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:27:32,280 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:27:32,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-23 22:27:32,280 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:27:32,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 22:27:32,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-11-23 22:27:32,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-11-23 22:27:32,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-11-23 22:27:32,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-11-23 22:27:32,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-11-23 22:27:32,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-11-23 22:27:32,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-11-23 22:27:32,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-11-23 22:27:32,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-11-23 22:27:32,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-11-23 22:27:32,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-11-23 22:27:32,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-11-23 22:27:32,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-11-23 22:27:32,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-11-23 22:27:32,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-11-23 22:27:32,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-11-23 22:27:32,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-11-23 22:27:32,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-11-23 22:27:32,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-11-23 22:27:32,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-11-23 22:27:32,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-11-23 22:27:32,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-11-23 22:27:32,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 22:27:32,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc8612f-18a1-40e8-9ec2-9767982d57cc/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 22:27:32,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.