./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/init-4-n-u.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_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/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_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-multidimensional/init-4-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/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_6517f5dc-c96e-442c-976f-bd3f3d6d284c/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 7e1c46a3eec085decec4254bf9381483b25ba7b6541d5728ae52d1793b9b8c91 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:37:47,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:37:47,711 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 21:37:47,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:37:47,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:37:47,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:37:47,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:37:47,747 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:37:47,748 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:37:47,748 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:37:47,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:37:47,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:37:47,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:37:47,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:37:47,751 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:37:47,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:37:47,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:37:47,753 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:37:47,753 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:37:47,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:37:47,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:37:47,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:37:47,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:37:47,756 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:37:47,757 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:37:47,757 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:37:47,758 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:37:47,758 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:37:47,759 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:37:47,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:37:47,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:37:47,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:37:47,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:37:47,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:37:47,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:37:47,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:37:47,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:37:47,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:37:47,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:37:47,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:37:47,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:37:47,765 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:37:47,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:37:47,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:37:47,766 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_6517f5dc-c96e-442c-976f-bd3f3d6d284c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e1c46a3eec085decec4254bf9381483b25ba7b6541d5728ae52d1793b9b8c91 [2023-11-23 21:37:48,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:37:48,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:37:48,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:37:48,050 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:37:48,051 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:37:48,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/array-multidimensional/init-4-n-u.c [2023-11-23 21:37:51,157 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:37:51,416 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:37:51,417 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/sv-benchmarks/c/array-multidimensional/init-4-n-u.c [2023-11-23 21:37:51,425 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/data/06c2623a2/05d78884a5ef49ab8e2710290a4e2f28/FLAG790418bc7 [2023-11-23 21:37:51,443 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/data/06c2623a2/05d78884a5ef49ab8e2710290a4e2f28 [2023-11-23 21:37:51,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:37:51,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:37:51,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:37:51,460 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:37:51,466 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:37:51,467 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,468 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f6eb0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51, skipping insertion in model container [2023-11-23 21:37:51,469 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,495 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:37:51,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:37:51,687 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:37:51,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:37:51,726 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:37:51,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51 WrapperNode [2023-11-23 21:37:51,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:37:51,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:37:51,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:37:51,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:37:51,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,749 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,773 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2023-11-23 21:37:51,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:37:51,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:37:51,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:37:51,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:37:51,788 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,791 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,804 INFO L189 HeapSplitter]: Split 4 memory accesses to 2 slices as follows [2, 2] [2023-11-23 21:37:51,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,815 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,818 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:37:51,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:37:51,822 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:37:51,822 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:37:51,824 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (1/1) ... [2023-11-23 21:37:51,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:37:51,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:51,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:51,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:37:51,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:37:51,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:37:51,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 21:37:51,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:37:51,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 21:37:51,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 21:37:51,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:37:51,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:37:51,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 21:37:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 21:37:51,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:37:51,998 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:37:52,002 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:37:52,324 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:37:52,370 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:37:52,370 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-23 21:37:52,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:52 BoogieIcfgContainer [2023-11-23 21:37:52,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:37:52,376 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:37:52,377 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:37:52,382 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:37:52,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:37:51" (1/3) ... [2023-11-23 21:37:52,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1971cce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:37:52, skipping insertion in model container [2023-11-23 21:37:52,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:51" (2/3) ... [2023-11-23 21:37:52,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1971cce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:37:52, skipping insertion in model container [2023-11-23 21:37:52,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:52" (3/3) ... [2023-11-23 21:37:52,388 INFO L112 eAbstractionObserver]: Analyzing ICFG init-4-n-u.c [2023-11-23 21:37:52,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:37:52,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-23 21:37:52,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:37:52,512 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;@3e1a833c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:37:52,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-23 21:37:52,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 29 states have (on average 2.1379310344827585) internal successors, (62), 45 states have internal predecessors, (62), 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 21:37:52,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:37:52,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:52,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:37:52,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:52,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:52,536 INFO L85 PathProgramCache]: Analyzing trace with hash 5462942, now seen corresponding path program 1 times [2023-11-23 21:37:52,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:52,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767563343] [2023-11-23 21:37:52,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:52,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:52,651 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:52,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2015412157] [2023-11-23 21:37:52,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:52,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:52,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:52,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:52,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:37:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:52,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:37:52,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:52,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:52,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:52,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:52,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767563343] [2023-11-23 21:37:52,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:52,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015412157] [2023-11-23 21:37:52,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015412157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:52,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:52,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:37:52,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008563602] [2023-11-23 21:37:52,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:52,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:52,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:52,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:52,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:52,866 INFO L87 Difference]: Start difference. First operand has 46 states, 29 states have (on average 2.1379310344827585) internal successors, (62), 45 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 21:37:52,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:52,919 INFO L93 Difference]: Finished difference Result 89 states and 123 transitions. [2023-11-23 21:37:52,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:52,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-23 21:37:52,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:52,930 INFO L225 Difference]: With dead ends: 89 [2023-11-23 21:37:52,931 INFO L226 Difference]: Without dead ends: 42 [2023-11-23 21:37:52,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 21:37:52,937 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:52,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 37 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:52,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-23 21:37:52,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-23 21:37:52,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.75) internal successors, (49), 41 states have internal predecessors, (49), 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 21:37:52,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2023-11-23 21:37:52,981 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 4 [2023-11-23 21:37:52,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:52,984 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2023-11-23 21:37:52,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 21:37:52,985 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2023-11-23 21:37:52,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 21:37:52,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:52,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 21:37:53,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:53,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:37:53,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:53,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:53,203 INFO L85 PathProgramCache]: Analyzing trace with hash 169351295, now seen corresponding path program 1 times [2023-11-23 21:37:53,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:53,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230698114] [2023-11-23 21:37:53,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:53,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:53,216 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:53,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [128208503] [2023-11-23 21:37:53,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:53,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:53,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:53,218 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:53,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:37:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:37:53,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:53,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:53,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:53,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:53,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230698114] [2023-11-23 21:37:53,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:53,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128208503] [2023-11-23 21:37:53,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128208503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:53,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:53,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:37:53,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228777020] [2023-11-23 21:37:53,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:53,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:53,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:53,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:53,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:53,314 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:53,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:53,395 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2023-11-23 21:37:53,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:53,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-23 21:37:53,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:53,399 INFO L225 Difference]: With dead ends: 83 [2023-11-23 21:37:53,399 INFO L226 Difference]: Without dead ends: 81 [2023-11-23 21:37:53,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:53,401 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 40 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:53,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 75 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:53,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-23 21:37:53,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 68. [2023-11-23 21:37:53,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 54 states have (on average 1.7407407407407407) internal successors, (94), 67 states have internal predecessors, (94), 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 21:37:53,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2023-11-23 21:37:53,434 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 5 [2023-11-23 21:37:53,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:53,435 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2023-11-23 21:37:53,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:53,435 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2023-11-23 21:37:53,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 21:37:53,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:53,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 21:37:53,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:53,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-23 21:37:53,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:53,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:53,638 INFO L85 PathProgramCache]: Analyzing trace with hash 169352154, now seen corresponding path program 1 times [2023-11-23 21:37:53,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:53,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241269622] [2023-11-23 21:37:53,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:53,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:53,646 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:53,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1507682805] [2023-11-23 21:37:53,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:53,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:53,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:53,654 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:53,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:37:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:53,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:37:53,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:53,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:53,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:53,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:53,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241269622] [2023-11-23 21:37:53,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:53,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507682805] [2023-11-23 21:37:53,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507682805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:53,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:53,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:53,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534972866] [2023-11-23 21:37:53,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:53,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:53,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:53,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:53,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:53,740 INFO L87 Difference]: Start difference. First operand 68 states and 94 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:53,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:53,804 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2023-11-23 21:37:53,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:53,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-23 21:37:53,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:53,806 INFO L225 Difference]: With dead ends: 68 [2023-11-23 21:37:53,808 INFO L226 Difference]: Without dead ends: 66 [2023-11-23 21:37:53,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:53,810 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:53,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 34 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:53,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-23 21:37:53,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-23 21:37:53,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 54 states have (on average 1.6666666666666667) internal successors, (90), 65 states have internal predecessors, (90), 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 21:37:53,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 90 transitions. [2023-11-23 21:37:53,833 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 90 transitions. Word has length 5 [2023-11-23 21:37:53,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:53,833 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 90 transitions. [2023-11-23 21:37:53,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:53,834 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2023-11-23 21:37:53,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:37:53,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:53,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:37:53,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:54,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:54,049 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:54,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:54,050 INFO L85 PathProgramCache]: Analyzing trace with hash 954949564, now seen corresponding path program 1 times [2023-11-23 21:37:54,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:54,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879902860] [2023-11-23 21:37:54,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:54,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:54,058 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:54,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122104700] [2023-11-23 21:37:54,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:54,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:54,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:54,064 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:54,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:37:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:54,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:37:54,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:54,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:54,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:54,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:54,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879902860] [2023-11-23 21:37:54,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:54,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122104700] [2023-11-23 21:37:54,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122104700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:54,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:54,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:54,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671923060] [2023-11-23 21:37:54,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:54,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:54,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:54,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:54,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:54,144 INFO L87 Difference]: Start difference. First operand 66 states and 90 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:54,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:54,198 INFO L93 Difference]: Finished difference Result 129 states and 176 transitions. [2023-11-23 21:37:54,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:54,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 21:37:54,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:54,200 INFO L225 Difference]: With dead ends: 129 [2023-11-23 21:37:54,200 INFO L226 Difference]: Without dead ends: 127 [2023-11-23 21:37:54,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:54,201 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 36 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:54,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 67 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:54,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-23 21:37:54,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 106. [2023-11-23 21:37:54,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 94 states have (on average 1.6808510638297873) internal successors, (158), 105 states have internal predecessors, (158), 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 21:37:54,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 158 transitions. [2023-11-23 21:37:54,220 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 158 transitions. Word has length 6 [2023-11-23 21:37:54,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:54,220 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 158 transitions. [2023-11-23 21:37:54,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:54,221 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 158 transitions. [2023-11-23 21:37:54,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:37:54,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:54,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:37:54,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:54,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:54,445 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:54,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:54,446 INFO L85 PathProgramCache]: Analyzing trace with hash 954950919, now seen corresponding path program 1 times [2023-11-23 21:37:54,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:54,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950772540] [2023-11-23 21:37:54,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:54,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:54,453 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:54,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1035311845] [2023-11-23 21:37:54,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:54,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:54,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:54,461 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:54,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:37:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:54,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:37:54,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:54,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:54,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:54,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:54,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950772540] [2023-11-23 21:37:54,521 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:54,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035311845] [2023-11-23 21:37:54,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035311845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:54,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:54,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:54,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679331268] [2023-11-23 21:37:54,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:54,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:54,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:54,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:54,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:54,523 INFO L87 Difference]: Start difference. First operand 106 states and 158 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:54,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:54,558 INFO L93 Difference]: Finished difference Result 106 states and 158 transitions. [2023-11-23 21:37:54,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:54,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 21:37:54,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:54,561 INFO L225 Difference]: With dead ends: 106 [2023-11-23 21:37:54,562 INFO L226 Difference]: Without dead ends: 104 [2023-11-23 21:37:54,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:54,563 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:54,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 32 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:54,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-23 21:37:54,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2023-11-23 21:37:54,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 94 states have (on average 1.5957446808510638) internal successors, (150), 103 states have internal predecessors, (150), 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 21:37:54,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 150 transitions. [2023-11-23 21:37:54,579 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 150 transitions. Word has length 6 [2023-11-23 21:37:54,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:54,580 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 150 transitions. [2023-11-23 21:37:54,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:54,580 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 150 transitions. [2023-11-23 21:37:54,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:37:54,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:54,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:37:54,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:54,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:54,805 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:54,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:54,806 INFO L85 PathProgramCache]: Analyzing trace with hash 954950974, now seen corresponding path program 1 times [2023-11-23 21:37:54,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:54,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344058643] [2023-11-23 21:37:54,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:54,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:54,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:54,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [700605465] [2023-11-23 21:37:54,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:54,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:54,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:54,816 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:54,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:37:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:54,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:37:54,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:54,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:54,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:54,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:54,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344058643] [2023-11-23 21:37:54,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:54,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700605465] [2023-11-23 21:37:54,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700605465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:54,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:54,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:54,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414794899] [2023-11-23 21:37:54,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:54,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:54,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:54,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:54,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:54,882 INFO L87 Difference]: Start difference. First operand 104 states and 150 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:54,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:54,956 INFO L93 Difference]: Finished difference Result 104 states and 150 transitions. [2023-11-23 21:37:54,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:54,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 21:37:54,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:54,958 INFO L225 Difference]: With dead ends: 104 [2023-11-23 21:37:54,958 INFO L226 Difference]: Without dead ends: 102 [2023-11-23 21:37:54,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:54,960 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:54,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 32 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:54,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-23 21:37:54,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-11-23 21:37:55,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 94 states have (on average 1.5106382978723405) internal successors, (142), 101 states have internal predecessors, (142), 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 21:37:55,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 142 transitions. [2023-11-23 21:37:55,013 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 142 transitions. Word has length 6 [2023-11-23 21:37:55,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:55,014 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 142 transitions. [2023-11-23 21:37:55,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 142 transitions. [2023-11-23 21:37:55,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 21:37:55,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:55,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:55,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:55,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:55,225 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:55,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:55,225 INFO L85 PathProgramCache]: Analyzing trace with hash -461292504, now seen corresponding path program 1 times [2023-11-23 21:37:55,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:55,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905863061] [2023-11-23 21:37:55,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:55,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:55,233 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:55,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1241932130] [2023-11-23 21:37:55,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:55,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:55,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:55,234 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:55,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 21:37:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:55,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:37:55,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:55,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:55,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:55,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:55,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905863061] [2023-11-23 21:37:55,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:55,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241932130] [2023-11-23 21:37:55,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241932130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:55,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:55,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:55,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414542987] [2023-11-23 21:37:55,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:55,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:55,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:55,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:55,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:55,334 INFO L87 Difference]: Start difference. First operand 102 states and 142 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:55,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:55,408 INFO L93 Difference]: Finished difference Result 197 states and 272 transitions. [2023-11-23 21:37:55,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:55,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-23 21:37:55,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:55,413 INFO L225 Difference]: With dead ends: 197 [2023-11-23 21:37:55,413 INFO L226 Difference]: Without dead ends: 195 [2023-11-23 21:37:55,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:55,415 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 30 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:55,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 57 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:55,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-23 21:37:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 158. [2023-11-23 21:37:55,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 150 states have (on average 1.48) internal successors, (222), 157 states have internal predecessors, (222), 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 21:37:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 222 transitions. [2023-11-23 21:37:55,454 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 222 transitions. Word has length 7 [2023-11-23 21:37:55,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:55,454 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 222 transitions. [2023-11-23 21:37:55,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:55,454 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 222 transitions. [2023-11-23 21:37:55,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 21:37:55,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:55,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:55,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:55,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-23 21:37:55,673 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:55,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:55,673 INFO L85 PathProgramCache]: Analyzing trace with hash -461290806, now seen corresponding path program 1 times [2023-11-23 21:37:55,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:55,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071648808] [2023-11-23 21:37:55,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:55,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:55,683 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:55,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306029267] [2023-11-23 21:37:55,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:55,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:55,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:55,684 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:55,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 21:37:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:55,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:37:55,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:55,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:55,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:55,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:55,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071648808] [2023-11-23 21:37:55,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:55,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306029267] [2023-11-23 21:37:55,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306029267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:55,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:55,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:55,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075202848] [2023-11-23 21:37:55,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:55,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:55,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:55,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:55,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:55,753 INFO L87 Difference]: Start difference. First operand 158 states and 222 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:55,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:55,818 INFO L93 Difference]: Finished difference Result 301 states and 416 transitions. [2023-11-23 21:37:55,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:55,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-23 21:37:55,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:55,821 INFO L225 Difference]: With dead ends: 301 [2023-11-23 21:37:55,821 INFO L226 Difference]: Without dead ends: 299 [2023-11-23 21:37:55,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:55,822 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 29 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:55,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 59 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:55,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-11-23 21:37:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 222. [2023-11-23 21:37:55,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 214 states have (on average 1.411214953271028) internal successors, (302), 221 states have internal predecessors, (302), 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 21:37:55,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 302 transitions. [2023-11-23 21:37:55,845 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 302 transitions. Word has length 7 [2023-11-23 21:37:55,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:55,846 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 302 transitions. [2023-11-23 21:37:55,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:55,846 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 302 transitions. [2023-11-23 21:37:55,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 21:37:55,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:55,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1] [2023-11-23 21:37:55,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:56,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-23 21:37:56,069 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:56,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:56,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1755503672, now seen corresponding path program 1 times [2023-11-23 21:37:56,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:56,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696446149] [2023-11-23 21:37:56,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:56,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:56,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:56,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936408742] [2023-11-23 21:37:56,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:56,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:56,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:56,077 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:56,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 21:37:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:56,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:37:56,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:56,181 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 21:37:56,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:56,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:56,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696446149] [2023-11-23 21:37:56,181 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:56,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936408742] [2023-11-23 21:37:56,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936408742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:56,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:56,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:37:56,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439887050] [2023-11-23 21:37:56,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:56,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:37:56,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:56,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:37:56,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:56,183 INFO L87 Difference]: Start difference. First operand 222 states and 302 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:56,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:56,259 INFO L93 Difference]: Finished difference Result 405 states and 539 transitions. [2023-11-23 21:37:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:37:56,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-23 21:37:56,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:56,262 INFO L225 Difference]: With dead ends: 405 [2023-11-23 21:37:56,262 INFO L226 Difference]: Without dead ends: 227 [2023-11-23 21:37:56,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 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 21:37:56,269 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 99 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:56,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 59 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:56,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-23 21:37:56,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 222. [2023-11-23 21:37:56,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 214 states have (on average 1.3925233644859814) internal successors, (298), 221 states have internal predecessors, (298), 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 21:37:56,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 298 transitions. [2023-11-23 21:37:56,297 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 298 transitions. Word has length 9 [2023-11-23 21:37:56,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:56,299 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 298 transitions. [2023-11-23 21:37:56,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:56,299 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 298 transitions. [2023-11-23 21:37:56,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 21:37:56,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:56,303 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-23 21:37:56,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:56,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 21:37:56,517 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:56,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:56,517 INFO L85 PathProgramCache]: Analyzing trace with hash 278183109, now seen corresponding path program 1 times [2023-11-23 21:37:56,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:56,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910829333] [2023-11-23 21:37:56,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:56,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:56,525 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:56,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937638364] [2023-11-23 21:37:56,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:56,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:56,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:56,528 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:56,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 21:37:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:56,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:37:56,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:56,615 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 21:37:56,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:56,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:56,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910829333] [2023-11-23 21:37:56,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:56,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937638364] [2023-11-23 21:37:56,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937638364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:56,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:56,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:37:56,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801013028] [2023-11-23 21:37:56,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:56,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:37:56,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:56,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:37:56,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:56,618 INFO L87 Difference]: Start difference. First operand 222 states and 298 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:56,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:56,679 INFO L93 Difference]: Finished difference Result 426 states and 566 transitions. [2023-11-23 21:37:56,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:37:56,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-23 21:37:56,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:56,681 INFO L225 Difference]: With dead ends: 426 [2023-11-23 21:37:56,681 INFO L226 Difference]: Without dead ends: 225 [2023-11-23 21:37:56,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:56,683 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 56 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:56,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 57 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:56,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-11-23 21:37:56,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 222. [2023-11-23 21:37:56,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 214 states have (on average 1.355140186915888) internal successors, (290), 221 states have internal predecessors, (290), 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 21:37:56,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 290 transitions. [2023-11-23 21:37:56,705 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 290 transitions. Word has length 10 [2023-11-23 21:37:56,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:56,705 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 290 transitions. [2023-11-23 21:37:56,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:56,706 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 290 transitions. [2023-11-23 21:37:56,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 21:37:56,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:56,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:56,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:56,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 21:37:56,924 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:56,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:56,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1581013244, now seen corresponding path program 1 times [2023-11-23 21:37:56,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:56,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955280367] [2023-11-23 21:37:56,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:56,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:56,931 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:56,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1469857189] [2023-11-23 21:37:56,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:56,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:56,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:56,933 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:56,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 21:37:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:56,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:37:56,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:57,018 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:57,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:57,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:57,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955280367] [2023-11-23 21:37:57,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:57,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469857189] [2023-11-23 21:37:57,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469857189] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:57,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:57,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-23 21:37:57,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374161340] [2023-11-23 21:37:57,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:57,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:37:57,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:57,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:37:57,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:37:57,048 INFO L87 Difference]: Start difference. First operand 222 states and 290 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 21:37:57,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:57,229 INFO L93 Difference]: Finished difference Result 724 states and 970 transitions. [2023-11-23 21:37:57,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:37:57,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-23 21:37:57,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:57,234 INFO L225 Difference]: With dead ends: 724 [2023-11-23 21:37:57,234 INFO L226 Difference]: Without dead ends: 722 [2023-11-23 21:37:57,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 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 21:37:57,236 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 145 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:57,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 134 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:57,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2023-11-23 21:37:57,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 414. [2023-11-23 21:37:57,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 406 states have (on average 1.3054187192118227) internal successors, (530), 413 states have internal predecessors, (530), 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 21:37:57,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 530 transitions. [2023-11-23 21:37:57,280 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 530 transitions. Word has length 10 [2023-11-23 21:37:57,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:57,280 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 530 transitions. [2023-11-23 21:37:57,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 21:37:57,281 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 530 transitions. [2023-11-23 21:37:57,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:37:57,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:57,282 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-11-23 21:37:57,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:57,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 21:37:57,500 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:57,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:57,500 INFO L85 PathProgramCache]: Analyzing trace with hash 198359921, now seen corresponding path program 1 times [2023-11-23 21:37:57,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:57,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789504422] [2023-11-23 21:37:57,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:57,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:57,507 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:57,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1862498036] [2023-11-23 21:37:57,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:57,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:57,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:57,510 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:57,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 21:37:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:57,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:37:57,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:57,604 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 21:37:57,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:57,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:57,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789504422] [2023-11-23 21:37:57,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:57,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862498036] [2023-11-23 21:37:57,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862498036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:57,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:57,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:37:57,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3249587] [2023-11-23 21:37:57,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:57,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:37:57,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:57,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:37:57,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:57,606 INFO L87 Difference]: Start difference. First operand 414 states and 530 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:57,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:57,709 INFO L93 Difference]: Finished difference Result 810 states and 1035 transitions. [2023-11-23 21:37:57,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:37:57,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-23 21:37:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:57,712 INFO L225 Difference]: With dead ends: 810 [2023-11-23 21:37:57,713 INFO L226 Difference]: Without dead ends: 415 [2023-11-23 21:37:57,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:57,715 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 59 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:57,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 59 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:57,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-11-23 21:37:57,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 414. [2023-11-23 21:37:57,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 406 states have (on average 1.2660098522167487) internal successors, (514), 413 states have internal predecessors, (514), 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 21:37:57,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 514 transitions. [2023-11-23 21:37:57,764 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 514 transitions. Word has length 11 [2023-11-23 21:37:57,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:57,764 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 514 transitions. [2023-11-23 21:37:57,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:57,765 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 514 transitions. [2023-11-23 21:37:57,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 21:37:57,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:57,765 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-23 21:37:57,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:57,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 21:37:57,981 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:57,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:57,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1260220417, now seen corresponding path program 1 times [2023-11-23 21:37:57,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:57,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199248485] [2023-11-23 21:37:57,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:57,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:57,991 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:57,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689375445] [2023-11-23 21:37:57,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:57,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:57,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:57,992 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:58,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 21:37:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:58,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:37:58,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:58,115 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:37:58,115 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:37:58,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:58,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199248485] [2023-11-23 21:37:58,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:58,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689375445] [2023-11-23 21:37:58,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689375445] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:58,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:58,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 21:37:58,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161259083] [2023-11-23 21:37:58,150 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:58,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:37:58,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:58,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:37:58,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:37:58,152 INFO L87 Difference]: Start difference. First operand 414 states and 514 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 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 21:37:58,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:58,290 INFO L93 Difference]: Finished difference Result 810 states and 1004 transitions. [2023-11-23 21:37:58,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:37:58,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-23 21:37:58,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:58,293 INFO L225 Difference]: With dead ends: 810 [2023-11-23 21:37:58,293 INFO L226 Difference]: Without dead ends: 415 [2023-11-23 21:37:58,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:37:58,295 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 126 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:58,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 84 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:58,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-11-23 21:37:58,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 414. [2023-11-23 21:37:58,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 406 states have (on average 1.1477832512315271) internal successors, (466), 413 states have internal predecessors, (466), 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 21:37:58,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 466 transitions. [2023-11-23 21:37:58,333 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 466 transitions. Word has length 17 [2023-11-23 21:37:58,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:58,334 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 466 transitions. [2023-11-23 21:37:58,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 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 21:37:58,334 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 466 transitions. [2023-11-23 21:37:58,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 21:37:58,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:58,335 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1] [2023-11-23 21:37:58,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:58,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 21:37:58,549 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:58,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:58,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1091033014, now seen corresponding path program 2 times [2023-11-23 21:37:58,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:58,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447337255] [2023-11-23 21:37:58,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:58,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:58,558 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:58,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829647529] [2023-11-23 21:37:58,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:37:58,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:58,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:58,559 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:58,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 21:37:58,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 21:37:58,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:37:58,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:37:58,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-23 21:37:58,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-23 21:37:58,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:58,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447337255] [2023-11-23 21:37:58,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:58,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829647529] [2023-11-23 21:37:58,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829647529] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:58,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:58,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2023-11-23 21:37:58,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532435381] [2023-11-23 21:37:58,694 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:58,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:37:58,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:58,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:37:58,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:37:58,695 INFO L87 Difference]: Start difference. First operand 414 states and 466 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 21:37:58,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:58,793 INFO L93 Difference]: Finished difference Result 415 states and 467 transitions. [2023-11-23 21:37:58,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:37:58,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-23 21:37:58,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:58,796 INFO L225 Difference]: With dead ends: 415 [2023-11-23 21:37:58,797 INFO L226 Difference]: Without dead ends: 413 [2023-11-23 21:37:58,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:37:58,798 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 116 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:58,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 55 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:58,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-11-23 21:37:58,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 364. [2023-11-23 21:37:58,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 358 states have (on average 1.1229050279329609) internal successors, (402), 363 states have internal predecessors, (402), 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 21:37:58,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 402 transitions. [2023-11-23 21:37:58,837 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 402 transitions. Word has length 19 [2023-11-23 21:37:58,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:58,837 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 402 transitions. [2023-11-23 21:37:58,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 21:37:58,837 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 402 transitions. [2023-11-23 21:37:58,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 21:37:58,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:58,839 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-23 21:37:58,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:59,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 21:37:59,053 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:59,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash -279191311, now seen corresponding path program 2 times [2023-11-23 21:37:59,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:59,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467578912] [2023-11-23 21:37:59,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:59,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:59,064 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:59,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763722587] [2023-11-23 21:37:59,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:37:59,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:59,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:59,066 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:59,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 21:37:59,131 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 21:37:59,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:37:59,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:37:59,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:59,179 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-23 21:37:59,179 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:59,233 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-23 21:37:59,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:59,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467578912] [2023-11-23 21:37:59,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:59,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763722587] [2023-11-23 21:37:59,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763722587] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:59,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:59,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2023-11-23 21:37:59,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915111764] [2023-11-23 21:37:59,234 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:59,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:37:59,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:59,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:37:59,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:37:59,236 INFO L87 Difference]: Start difference. First operand 364 states and 402 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 21:37:59,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:59,304 INFO L93 Difference]: Finished difference Result 365 states and 403 transitions. [2023-11-23 21:37:59,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:37:59,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-11-23 21:37:59,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:59,307 INFO L225 Difference]: With dead ends: 365 [2023-11-23 21:37:59,307 INFO L226 Difference]: Without dead ends: 363 [2023-11-23 21:37:59,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:37:59,308 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 94 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:59,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 43 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:59,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-23 21:37:59,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 210. [2023-11-23 21:37:59,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 206 states have (on average 1.1359223300970873) internal successors, (234), 209 states have internal predecessors, (234), 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 21:37:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 234 transitions. [2023-11-23 21:37:59,333 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 234 transitions. Word has length 35 [2023-11-23 21:37:59,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:59,334 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 234 transitions. [2023-11-23 21:37:59,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 21:37:59,334 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 234 transitions. [2023-11-23 21:37:59,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-23 21:37:59,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:59,335 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 21:37:59,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:59,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 21:37:59,555 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:37:59,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:59,555 INFO L85 PathProgramCache]: Analyzing trace with hash 143316339, now seen corresponding path program 1 times [2023-11-23 21:37:59,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:59,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125261327] [2023-11-23 21:37:59,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:59,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:59,567 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:59,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995243162] [2023-11-23 21:37:59,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:59,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:59,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:59,569 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:59,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 21:37:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:59,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:37:59,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:59,753 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-23 21:37:59,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-23 21:37:59,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:59,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125261327] [2023-11-23 21:37:59,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:59,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995243162] [2023-11-23 21:37:59,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995243162] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:59,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:59,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-23 21:37:59,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035766088] [2023-11-23 21:37:59,836 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:59,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 21:37:59,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:59,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 21:37:59,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:37:59,838 INFO L87 Difference]: Start difference. First operand 210 states and 234 transitions. Second operand has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 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 21:38:00,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:38:00,081 INFO L93 Difference]: Finished difference Result 609 states and 704 transitions. [2023-11-23 21:38:00,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 21:38:00,082 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-11-23 21:38:00,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:38:00,084 INFO L225 Difference]: With dead ends: 609 [2023-11-23 21:38:00,085 INFO L226 Difference]: Without dead ends: 403 [2023-11-23 21:38:00,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=191, Unknown=0, NotChecked=0, Total=342 [2023-11-23 21:38:00,086 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 212 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:38:00,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 111 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:38:00,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-23 21:38:00,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 402. [2023-11-23 21:38:00,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 398 states have (on average 1.07035175879397) internal successors, (426), 401 states have internal predecessors, (426), 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 21:38:00,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 426 transitions. [2023-11-23 21:38:00,130 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 426 transitions. Word has length 42 [2023-11-23 21:38:00,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:38:00,130 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 426 transitions. [2023-11-23 21:38:00,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 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 21:38:00,131 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 426 transitions. [2023-11-23 21:38:00,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 21:38:00,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:38:00,134 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 21:38:00,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-23 21:38:00,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 21:38:00,355 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:38:00,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:00,355 INFO L85 PathProgramCache]: Analyzing trace with hash 144690419, now seen corresponding path program 2 times [2023-11-23 21:38:00,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:00,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416771377] [2023-11-23 21:38:00,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:00,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:00,375 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:38:00,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [362528709] [2023-11-23 21:38:00,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:38:00,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:38:00,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:38:00,377 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:38:00,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 21:38:00,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 21:38:00,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:38:00,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:38:00,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:38:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-23 21:38:00,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:38:00,704 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-23 21:38:00,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:00,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416771377] [2023-11-23 21:38:00,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:38:00,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362528709] [2023-11-23 21:38:00,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362528709] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:38:00,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:38:00,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2023-11-23 21:38:00,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676271710] [2023-11-23 21:38:00,706 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:38:00,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:38:00,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:00,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:38:00,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:38:00,708 INFO L87 Difference]: Start difference. First operand 402 states and 426 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 21:38:00,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:38:00,786 INFO L93 Difference]: Finished difference Result 403 states and 427 transitions. [2023-11-23 21:38:00,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:38:00,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-11-23 21:38:00,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:38:00,789 INFO L225 Difference]: With dead ends: 403 [2023-11-23 21:38:00,790 INFO L226 Difference]: Without dead ends: 401 [2023-11-23 21:38:00,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:38:00,791 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 50 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:38:00,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 33 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:38:00,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-23 21:38:00,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 212. [2023-11-23 21:38:00,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 210 states have (on average 1.0761904761904761) internal successors, (226), 211 states have internal predecessors, (226), 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 21:38:00,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 226 transitions. [2023-11-23 21:38:00,834 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 226 transitions. Word has length 78 [2023-11-23 21:38:00,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:38:00,835 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 226 transitions. [2023-11-23 21:38:00,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 21:38:00,835 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 226 transitions. [2023-11-23 21:38:00,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 21:38:00,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:38:00,836 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-23 21:38:00,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 21:38:01,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 21:38:01,053 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:38:01,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:01,053 INFO L85 PathProgramCache]: Analyzing trace with hash -978327992, now seen corresponding path program 1 times [2023-11-23 21:38:01,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:01,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770951976] [2023-11-23 21:38:01,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:01,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:01,075 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:38:01,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [279226283] [2023-11-23 21:38:01,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:01,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:38:01,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:38:01,076 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:38:01,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 21:38:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:01,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:38:01,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:38:01,477 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 328 proven. 145 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-23 21:38:01,477 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:38:01,747 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 328 proven. 145 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-23 21:38:01,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:01,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770951976] [2023-11-23 21:38:01,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:38:01,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279226283] [2023-11-23 21:38:01,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279226283] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:38:01,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:38:01,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-11-23 21:38:01,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71640138] [2023-11-23 21:38:01,749 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:38:01,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-23 21:38:01,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:01,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-23 21:38:01,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=347, Unknown=0, NotChecked=0, Total=650 [2023-11-23 21:38:01,751 INFO L87 Difference]: Start difference. First operand 212 states and 226 transitions. Second operand has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 25 states have internal predecessors, (86), 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 21:38:02,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:38:02,374 INFO L93 Difference]: Finished difference Result 614 states and 689 transitions. [2023-11-23 21:38:02,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-23 21:38:02,375 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 25 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-11-23 21:38:02,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:38:02,378 INFO L225 Difference]: With dead ends: 614 [2023-11-23 21:38:02,378 INFO L226 Difference]: Without dead ends: 405 [2023-11-23 21:38:02,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=589, Invalid=743, Unknown=0, NotChecked=0, Total=1332 [2023-11-23 21:38:02,380 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 495 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:38:02,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 165 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:38:02,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2023-11-23 21:38:02,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 404. [2023-11-23 21:38:02,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 402 states have (on average 1.0398009950248757) internal successors, (418), 403 states have internal predecessors, (418), 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 21:38:02,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 418 transitions. [2023-11-23 21:38:02,428 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 418 transitions. Word has length 85 [2023-11-23 21:38:02,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:38:02,429 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 418 transitions. [2023-11-23 21:38:02,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 25 states have internal predecessors, (86), 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 21:38:02,429 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 418 transitions. [2023-11-23 21:38:02,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-23 21:38:02,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:38:02,431 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-23 21:38:02,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 21:38:02,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 21:38:02,652 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:38:02,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:02,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1764702520, now seen corresponding path program 2 times [2023-11-23 21:38:02,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:02,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643715715] [2023-11-23 21:38:02,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:02,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:02,689 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:38:02,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1689982872] [2023-11-23 21:38:02,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:38:02,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:38:02,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:38:02,691 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:38:02,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 21:38:02,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 21:38:02,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:38:02,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:38:02,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:38:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2946 backedges. 0 proven. 1511 refuted. 0 times theorem prover too weak. 1435 trivial. 0 not checked. [2023-11-23 21:38:03,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:38:03,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2946 backedges. 0 proven. 1511 refuted. 0 times theorem prover too weak. 1435 trivial. 0 not checked. [2023-11-23 21:38:03,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:03,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643715715] [2023-11-23 21:38:03,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:38:03,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689982872] [2023-11-23 21:38:03,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689982872] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:38:03,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:38:03,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2023-11-23 21:38:03,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704475510] [2023-11-23 21:38:03,275 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:38:03,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:38:03,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:03,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:38:03,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:38:03,277 INFO L87 Difference]: Start difference. First operand 404 states and 418 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 21:38:03,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:38:03,357 INFO L93 Difference]: Finished difference Result 405 states and 419 transitions. [2023-11-23 21:38:03,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:38:03,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2023-11-23 21:38:03,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:38:03,358 INFO L225 Difference]: With dead ends: 405 [2023-11-23 21:38:03,358 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:38:03,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:38:03,359 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:38:03,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 25 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:38:03,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:38:03,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:38:03,361 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 21:38:03,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:38:03,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2023-11-23 21:38:03,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:38:03,362 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:38:03,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 21:38:03,362 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:38:03,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:38:03,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-11-23 21:38:03,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-11-23 21:38:03,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-11-23 21:38:03,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-11-23 21:38:03,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-11-23 21:38:03,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-11-23 21:38:03,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2023-11-23 21:38:03,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2023-11-23 21:38:03,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2023-11-23 21:38:03,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2023-11-23 21:38:03,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-11-23 21:38:03,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-11-23 21:38:03,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-11-23 21:38:03,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-11-23 21:38:03,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-11-23 21:38:03,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-11-23 21:38:03,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 21:38:03,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:38:03,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:38:08,882 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-23 21:38:08,883 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 45) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~l~0#1| 2147483646) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1800) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (= 2000 |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~l~0#1|) (= |ULTIMATE.start_main_~n~0#1| 1500)) [2023-11-23 21:38:08,883 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 27 45) no Hoare annotation was computed. [2023-11-23 21:38:08,883 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 52 70) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~l~0#1| 2147483646) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1800) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (= 2000 |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~l~0#1|) (= |ULTIMATE.start_main_~n~0#1| 1500)) [2023-11-23 21:38:08,884 INFO L899 garLoopResultBuilder]: For program point L52-3(lines 52 70) no Hoare annotation was computed. [2023-11-23 21:38:08,884 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 69) no Hoare annotation was computed. [2023-11-23 21:38:08,884 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-23 21:38:08,884 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-23 21:38:08,884 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-11-23 21:38:08,885 INFO L895 garLoopResultBuilder]: At program point L36-2(lines 36 39) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~l~0#1| 2147483646) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1800) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= 2000 |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 1799) (<= 0 |ULTIMATE.start_main_~l~0#1|) (= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2023-11-23 21:38:08,885 INFO L899 garLoopResultBuilder]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2023-11-23 21:38:08,885 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-23 21:38:08,885 INFO L895 garLoopResultBuilder]: At program point L61-2(lines 61 64) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~l~0#1| 2147483646) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1800) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= 2000 |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 1799) (<= 0 |ULTIMATE.start_main_~l~0#1|) (= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2023-11-23 21:38:08,885 INFO L899 garLoopResultBuilder]: For program point L61-3(lines 61 64) no Hoare annotation was computed. [2023-11-23 21:38:08,886 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 63) no Hoare annotation was computed. [2023-11-23 21:38:08,886 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-23 21:38:08,886 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 63) no Hoare annotation was computed. [2023-11-23 21:38:08,886 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:38:08,886 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2023-11-23 21:38:08,886 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2023-11-23 21:38:08,887 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2023-11-23 21:38:08,887 INFO L899 garLoopResultBuilder]: For program point L63-1(line 63) no Hoare annotation was computed. [2023-11-23 21:38:08,887 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 65) no Hoare annotation was computed. [2023-11-23 21:38:08,887 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2023-11-23 21:38:08,887 INFO L899 garLoopResultBuilder]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2023-11-23 21:38:08,887 INFO L895 garLoopResultBuilder]: At program point L31-2(lines 31 43) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~l~0#1| 2147483646) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1800) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (= 2000 |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~l~0#1|) (= |ULTIMATE.start_main_~n~0#1| 1500)) [2023-11-23 21:38:08,888 INFO L899 garLoopResultBuilder]: For program point L31-3(lines 31 43) no Hoare annotation was computed. [2023-11-23 21:38:08,888 INFO L895 garLoopResultBuilder]: At program point L56-2(lines 56 68) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~l~0#1| 2147483646) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1800) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (= 2000 |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~l~0#1|) (= |ULTIMATE.start_main_~n~0#1| 1500)) [2023-11-23 21:38:08,888 INFO L899 garLoopResultBuilder]: For program point L56-3(lines 56 68) no Hoare annotation was computed. [2023-11-23 21:38:08,888 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 65) no Hoare annotation was computed. [2023-11-23 21:38:08,888 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-23 21:38:08,888 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2023-11-23 21:38:08,889 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-11-23 21:38:08,889 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 67) no Hoare annotation was computed. [2023-11-23 21:38:08,889 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:38:08,889 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-11-23 21:38:08,889 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 67) no Hoare annotation was computed. [2023-11-23 21:38:08,889 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2023-11-23 21:38:08,890 INFO L899 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2023-11-23 21:38:08,890 INFO L895 garLoopResultBuilder]: At program point L34-2(lines 34 41) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~l~0#1| 2147483646) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1800) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (= 2000 |ULTIMATE.start_main_~q~0#1|) (<= 0 |ULTIMATE.start_main_~l~0#1|) (= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2023-11-23 21:38:08,890 INFO L899 garLoopResultBuilder]: For program point L34-3(lines 34 41) no Hoare annotation was computed. [2023-11-23 21:38:08,890 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-23 21:38:08,890 INFO L895 garLoopResultBuilder]: At program point L59-2(lines 59 66) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~l~0#1| 2147483646) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1800) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (= 2000 |ULTIMATE.start_main_~q~0#1|) (<= 0 |ULTIMATE.start_main_~l~0#1|) (= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2023-11-23 21:38:08,891 INFO L899 garLoopResultBuilder]: For program point L59-3(lines 59 66) no Hoare annotation was computed. [2023-11-23 21:38:08,891 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 69) no Hoare annotation was computed. [2023-11-23 21:38:08,891 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-23 21:38:08,894 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:08,896 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:38:08,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:38:08 BoogieIcfgContainer [2023-11-23 21:38:08,914 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:38:08,914 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:38:08,914 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:38:08,915 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:38:08,915 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:52" (3/4) ... [2023-11-23 21:38:08,917 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:38:08,926 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-23 21:38:08,926 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 21:38:08,927 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 21:38:08,927 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:38:09,064 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 21:38:09,065 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 21:38:09,066 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:38:09,066 INFO L158 Benchmark]: Toolchain (without parser) took 17612.27ms. Allocated memory was 151.0MB in the beginning and 268.4MB in the end (delta: 117.4MB). Free memory was 119.5MB in the beginning and 126.1MB in the end (delta: -6.7MB). Peak memory consumption was 111.6MB. Max. memory is 16.1GB. [2023-11-23 21:38:09,067 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:38:09,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.19ms. Allocated memory is still 151.0MB. Free memory was 119.5MB in the beginning and 108.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:38:09,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.02ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 106.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:38:09,068 INFO L158 Benchmark]: Boogie Preprocessor took 46.21ms. Allocated memory is still 151.0MB. Free memory was 106.9MB in the beginning and 104.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:38:09,069 INFO L158 Benchmark]: RCFGBuilder took 549.37ms. Allocated memory is still 151.0MB. Free memory was 104.8MB in the beginning and 90.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:38:09,070 INFO L158 Benchmark]: TraceAbstraction took 16537.77ms. Allocated memory was 151.0MB in the beginning and 268.4MB in the end (delta: 117.4MB). Free memory was 89.3MB in the beginning and 131.4MB in the end (delta: -42.1MB). Peak memory consumption was 130.7MB. Max. memory is 16.1GB. [2023-11-23 21:38:09,070 INFO L158 Benchmark]: Witness Printer took 151.58ms. Allocated memory is still 268.4MB. Free memory was 131.4MB in the beginning and 126.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:38:09,073 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.19ms. Allocated memory is still 151.0MB. Free memory was 119.5MB in the beginning and 108.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.02ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 106.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.21ms. Allocated memory is still 151.0MB. Free memory was 106.9MB in the beginning and 104.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 549.37ms. Allocated memory is still 151.0MB. Free memory was 104.8MB in the beginning and 90.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 16537.77ms. Allocated memory was 151.0MB in the beginning and 268.4MB in the end (delta: 117.4MB). Free memory was 89.3MB in the beginning and 131.4MB in the end (delta: -42.1MB). Peak memory consumption was 130.7MB. Max. memory is 16.1GB. * Witness Printer took 151.58ms. Allocated memory is still 268.4MB. Free memory was 131.4MB in the beginning and 126.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 16.4s, OverallIterations: 19, TraceHistogramMax: 44, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1817 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1817 mSDsluCounter, 1218 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 609 mSDsCounter, 397 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 561 IncrementalHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 397 mSolverCounterUnsat, 609 mSDtfsCounter, 561 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 961 GetRequests, 859 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=414occurred in iteration=11, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 19 MinimizatonAttempts, 859 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 120 NumberOfFragments, 296 HoareAnnotationTreeSize, 8 FomulaSimplifications, 8298 FormulaSimplificationTreeSizeReduction, 3.2s HoareSimplificationTime, 8 FomulaSimplificationsInter, 15464 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 519 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 935 ConstructedInterpolants, 0 QuantifiedInterpolants, 2691 SizeOfPredicates, 20 NumberOfNonLiveVariables, 1659 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 27 InterpolantComputations, 11 PerfectInterpolantSequences, 4772/8928 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k) && (m <= 1000)) && (l <= 2147483646)) && (i <= 2147483646)) && (0 <= j)) && (p == 1800)) && (0 <= i)) && (k <= 2147483646)) && (2000 == q)) && (j <= 2147483646)) && (0 <= l)) && (n == 1500)) - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k) && (m <= 1000)) && (l <= 2147483646)) && (i <= 999)) && (0 <= j)) && (p == 1800)) && (0 <= i)) && (k <= 2147483646)) && (2000 == q)) && (0 <= l)) && (n == 1500)) && (j <= 1499)) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k) && (m <= 1000)) && (l <= 2147483646)) && (i <= 999)) && (0 <= j)) && (p == 1800)) && (0 <= i)) && (k <= 2147483646)) && (2000 == q)) && (j <= 2147483646)) && (0 <= l)) && (n == 1500)) - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k) && (m <= 1000)) && (l <= 2147483646)) && (i <= 999)) && (0 <= j)) && (p == 1800)) && (0 <= i)) && (2000 == q)) && (k <= 1799)) && (0 <= l)) && (n == 1500)) && (j <= 1499)) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k) && (m <= 1000)) && (l <= 2147483646)) && (i <= 999)) && (0 <= j)) && (p == 1800)) && (0 <= i)) && (k <= 2147483646)) && (2000 == q)) && (0 <= l)) && (n == 1500)) && (j <= 1499)) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k) && (m <= 1000)) && (l <= 2147483646)) && (i <= 2147483646)) && (0 <= j)) && (p == 1800)) && (0 <= i)) && (k <= 2147483646)) && (2000 == q)) && (j <= 2147483646)) && (0 <= l)) && (n == 1500)) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k) && (m <= 1000)) && (l <= 2147483646)) && (i <= 999)) && (0 <= j)) && (p == 1800)) && (0 <= i)) && (k <= 2147483646)) && (2000 == q)) && (j <= 2147483646)) && (0 <= l)) && (n == 1500)) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k) && (m <= 1000)) && (l <= 2147483646)) && (i <= 999)) && (0 <= j)) && (p == 1800)) && (0 <= i)) && (2000 == q)) && (k <= 1799)) && (0 <= l)) && (n == 1500)) && (j <= 1499)) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:38:09,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6517f5dc-c96e-442c-976f-bd3f3d6d284c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE