./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/nr2.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_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/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_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-tiling/nr2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/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_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/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 2a5d4c3d8db636946363c81d25b5c2e381fc236cdcde6b4765d7ce6e059d8a21 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:39:28,576 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:39:28,650 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 21:39:28,656 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:39:28,657 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:39:28,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:39:28,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:39:28,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:39:28,686 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:39:28,686 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:39:28,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:39:28,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:39:28,689 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:39:28,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:39:28,690 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:39:28,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:39:28,691 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:39:28,692 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:39:28,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:39:28,693 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:39:28,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:39:28,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:39:28,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:39:28,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:39:28,695 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:39:28,696 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:39:28,696 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:39:28,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:39:28,697 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:39:28,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:39:28,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:39:28,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:39:28,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:39:28,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:39:28,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:39:28,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:39:28,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:39:28,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:39:28,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:39:28,703 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:39:28,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:39:28,704 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:39:28,704 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:39:28,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:39:28,705 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_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a5d4c3d8db636946363c81d25b5c2e381fc236cdcde6b4765d7ce6e059d8a21 [2023-11-23 21:39:29,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:39:29,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:39:29,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:39:29,114 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:39:29,116 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:39:29,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/array-tiling/nr2.c [2023-11-23 21:39:32,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:39:32,582 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:39:32,583 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/sv-benchmarks/c/array-tiling/nr2.c [2023-11-23 21:39:32,592 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/data/636e4cc6f/7fdbdece444641a8b9cf19318ef4edfe/FLAG53770d512 [2023-11-23 21:39:32,607 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/data/636e4cc6f/7fdbdece444641a8b9cf19318ef4edfe [2023-11-23 21:39:32,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:39:32,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:39:32,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:39:32,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:39:32,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:39:32,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:32,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6b54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32, skipping insertion in model container [2023-11-23 21:39:32,623 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:32,646 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:39:32,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:39:32,900 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:39:32,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:39:32,942 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:39:32,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32 WrapperNode [2023-11-23 21:39:32,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:39:32,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:39:32,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:39:32,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:39:32,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:32,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:32,992 INFO L138 Inliner]: procedures = 15, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 98 [2023-11-23 21:39:32,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:39:32,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:39:32,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:39:32,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:39:33,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:33,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:33,009 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:33,020 INFO L189 HeapSplitter]: Split 12 memory accesses to 3 slices as follows [2, 6, 4] [2023-11-23 21:39:33,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:33,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:33,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:33,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:33,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:33,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:33,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:39:33,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:39:33,039 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:39:33,039 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:39:33,040 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (1/1) ... [2023-11-23 21:39:33,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:39:33,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:39:33,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:39:33,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:39:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:39:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:39:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 21:39:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 21:39:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:39:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 21:39:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 21:39:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 21:39:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:39:33,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:39:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 21:39:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 21:39:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 21:39:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:39:33,240 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:39:33,242 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:39:33,645 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:39:33,682 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:39:33,682 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 21:39:33,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:39:33 BoogieIcfgContainer [2023-11-23 21:39:33,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:39:33,695 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:39:33,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:39:33,701 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:39:33,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:39:32" (1/3) ... [2023-11-23 21:39:33,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd3a199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:39:33, skipping insertion in model container [2023-11-23 21:39:33,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:32" (2/3) ... [2023-11-23 21:39:33,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd3a199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:39:33, skipping insertion in model container [2023-11-23 21:39:33,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:39:33" (3/3) ... [2023-11-23 21:39:33,705 INFO L112 eAbstractionObserver]: Analyzing ICFG nr2.c [2023-11-23 21:39:33,727 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:39:33,727 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-23 21:39:33,801 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:39:33,810 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;@53dbb91e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:39:33,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-23 21:39:33,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 35 states have (on average 1.8) internal successors, (63), 51 states have internal predecessors, (63), 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 21:39:33,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:39:33,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:33,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:39:33,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:33,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:33,836 INFO L85 PathProgramCache]: Analyzing trace with hash 90221363, now seen corresponding path program 1 times [2023-11-23 21:39:33,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:33,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45143831] [2023-11-23 21:39:33,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:33,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:34,117 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 21:39:34,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:34,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45143831] [2023-11-23 21:39:34,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45143831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:34,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:34,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:39:34,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282001570] [2023-11-23 21:39:34,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:34,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:39:34,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:34,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:39:34,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:39:34,188 INFO L87 Difference]: Start difference. First operand has 52 states, 35 states have (on average 1.8) internal successors, (63), 51 states have internal predecessors, (63), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 21:39:34,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:34,232 INFO L93 Difference]: Finished difference Result 100 states and 119 transitions. [2023-11-23 21:39:34,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:39:34,235 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 21:39:34,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:34,246 INFO L225 Difference]: With dead ends: 100 [2023-11-23 21:39:34,246 INFO L226 Difference]: Without dead ends: 48 [2023-11-23 21:39:34,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:39:34,256 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:34,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:39:34,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-23 21:39:34,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-23 21:39:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.625) internal successors, (52), 47 states have internal predecessors, (52), 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 21:39:34,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2023-11-23 21:39:34,309 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 6 [2023-11-23 21:39:34,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:34,310 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2023-11-23 21:39:34,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 21:39:34,311 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2023-11-23 21:39:34,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:39:34,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:34,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:39:34,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:39:34,314 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:34,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:34,315 INFO L85 PathProgramCache]: Analyzing trace with hash 90223285, now seen corresponding path program 1 times [2023-11-23 21:39:34,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:34,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301829155] [2023-11-23 21:39:34,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:34,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:34,653 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 21:39:34,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:34,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301829155] [2023-11-23 21:39:34,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301829155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:34,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:34,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:39:34,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295629337] [2023-11-23 21:39:34,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:34,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:39:34,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:34,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:39:34,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:39:34,661 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 21:39:34,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:34,724 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2023-11-23 21:39:34,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:39:34,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 21:39:34,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:34,727 INFO L225 Difference]: With dead ends: 48 [2023-11-23 21:39:34,727 INFO L226 Difference]: Without dead ends: 47 [2023-11-23 21:39:34,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 21:39:34,734 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:34,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 42 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:39:34,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-23 21:39:34,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-23 21:39:34,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.59375) internal successors, (51), 46 states have internal predecessors, (51), 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 21:39:34,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2023-11-23 21:39:34,756 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 6 [2023-11-23 21:39:34,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:34,758 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2023-11-23 21:39:34,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 21:39:34,759 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2023-11-23 21:39:34,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 21:39:34,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:34,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:34,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:39:34,762 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:34,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:34,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1498045407, now seen corresponding path program 1 times [2023-11-23 21:39:34,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:34,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977263508] [2023-11-23 21:39:34,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:34,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:35,163 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 21:39:35,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:35,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977263508] [2023-11-23 21:39:35,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977263508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:35,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:35,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:39:35,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248340432] [2023-11-23 21:39:35,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:35,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:39:35,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:35,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:39:35,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:39:35,171 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 21:39:35,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:35,239 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2023-11-23 21:39:35,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:39:35,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 21:39:35,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:35,242 INFO L225 Difference]: With dead ends: 47 [2023-11-23 21:39:35,242 INFO L226 Difference]: Without dead ends: 46 [2023-11-23 21:39:35,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:39:35,247 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 90 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:35,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 41 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:39:35,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-23 21:39:35,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-23 21:39:35,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.5625) internal successors, (50), 45 states have internal predecessors, (50), 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 21:39:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2023-11-23 21:39:35,264 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 7 [2023-11-23 21:39:35,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:35,264 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2023-11-23 21:39:35,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 21:39:35,265 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2023-11-23 21:39:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:39:35,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:35,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:35,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:39:35,267 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:35,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:35,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1295023561, now seen corresponding path program 1 times [2023-11-23 21:39:35,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:35,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633401190] [2023-11-23 21:39:35,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:35,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:35,314 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 21:39:35,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:35,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633401190] [2023-11-23 21:39:35,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633401190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:35,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:35,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:39:35,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824680327] [2023-11-23 21:39:35,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:35,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:39:35,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:35,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:39:35,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:39:35,317 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 21:39:35,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:35,376 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2023-11-23 21:39:35,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:39:35,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 21:39:35,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:35,378 INFO L225 Difference]: With dead ends: 110 [2023-11-23 21:39:35,378 INFO L226 Difference]: Without dead ends: 69 [2023-11-23 21:39:35,379 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 21:39:35,380 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 23 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:35,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 68 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:39:35,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-23 21:39:35,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 47. [2023-11-23 21:39:35,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 46 states have internal predecessors, (51), 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 21:39:35,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2023-11-23 21:39:35,389 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 11 [2023-11-23 21:39:35,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:35,390 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2023-11-23 21:39:35,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 21:39:35,390 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2023-11-23 21:39:35,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:39:35,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:35,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:35,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:39:35,391 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:35,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:35,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1295024907, now seen corresponding path program 1 times [2023-11-23 21:39:35,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:35,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475217268] [2023-11-23 21:39:35,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:35,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:35,469 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 21:39:35,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:35,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475217268] [2023-11-23 21:39:35,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475217268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:35,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:35,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:39:35,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338040016] [2023-11-23 21:39:35,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:35,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:39:35,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:35,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:39:35,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:39:35,474 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 21:39:35,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:35,529 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2023-11-23 21:39:35,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:39:35,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 21:39:35,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:35,531 INFO L225 Difference]: With dead ends: 103 [2023-11-23 21:39:35,531 INFO L226 Difference]: Without dead ends: 61 [2023-11-23 21:39:35,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 21:39:35,533 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 56 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:35,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 70 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:39:35,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-23 21:39:35,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2023-11-23 21:39:35,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.5294117647058822) internal successors, (52), 47 states have internal predecessors, (52), 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 21:39:35,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2023-11-23 21:39:35,540 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 11 [2023-11-23 21:39:35,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:35,541 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2023-11-23 21:39:35,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 21:39:35,541 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2023-11-23 21:39:35,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:39:35,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:35,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:35,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:39:35,543 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:35,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:35,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1295024587, now seen corresponding path program 1 times [2023-11-23 21:39:35,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:35,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600915199] [2023-11-23 21:39:35,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:35,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:35,581 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 21:39:35,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:35,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600915199] [2023-11-23 21:39:35,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600915199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:35,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:35,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:39:35,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515301060] [2023-11-23 21:39:35,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:35,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:39:35,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:35,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:39:35,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:39:35,585 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 21:39:35,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:35,652 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2023-11-23 21:39:35,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:39:35,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 21:39:35,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:35,654 INFO L225 Difference]: With dead ends: 82 [2023-11-23 21:39:35,655 INFO L226 Difference]: Without dead ends: 78 [2023-11-23 21:39:35,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:39:35,656 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:35,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 55 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:35,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-23 21:39:35,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 66. [2023-11-23 21:39:35,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 65 states have internal predecessors, (79), 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 21:39:35,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 79 transitions. [2023-11-23 21:39:35,666 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 79 transitions. Word has length 11 [2023-11-23 21:39:35,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:35,667 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 79 transitions. [2023-11-23 21:39:35,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 21:39:35,667 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 79 transitions. [2023-11-23 21:39:35,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 21:39:35,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:35,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:35,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:39:35,669 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:35,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:35,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1021885363, now seen corresponding path program 1 times [2023-11-23 21:39:35,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:35,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270096721] [2023-11-23 21:39:35,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:35,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:35,727 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 21:39:35,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:35,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270096721] [2023-11-23 21:39:35,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270096721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:35,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:35,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:39:35,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804793555] [2023-11-23 21:39:35,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:35,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:39:35,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:35,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:39:35,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:39:35,731 INFO L87 Difference]: Start difference. First operand 66 states and 79 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:35,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:35,859 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2023-11-23 21:39:35,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:39:35,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-23 21:39:35,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:35,861 INFO L225 Difference]: With dead ends: 89 [2023-11-23 21:39:35,862 INFO L226 Difference]: Without dead ends: 87 [2023-11-23 21:39:35,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 21:39:35,863 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 39 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:35,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 60 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:35,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-23 21:39:35,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 70. [2023-11-23 21:39:35,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 69 states have internal predecessors, (83), 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 21:39:35,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 83 transitions. [2023-11-23 21:39:35,874 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 83 transitions. Word has length 13 [2023-11-23 21:39:35,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:35,875 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 83 transitions. [2023-11-23 21:39:35,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:35,875 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 83 transitions. [2023-11-23 21:39:35,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 21:39:35,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:35,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:35,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:39:35,877 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:35,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:35,878 INFO L85 PathProgramCache]: Analyzing trace with hash -414340468, now seen corresponding path program 1 times [2023-11-23 21:39:35,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:35,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918186341] [2023-11-23 21:39:35,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:35,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:35,949 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 21:39:35,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:35,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918186341] [2023-11-23 21:39:35,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918186341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:35,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:35,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:39:35,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759539390] [2023-11-23 21:39:35,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:35,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:39:35,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:35,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:39:35,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:39:35,952 INFO L87 Difference]: Start difference. First operand 70 states and 83 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 21:39:36,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:36,020 INFO L93 Difference]: Finished difference Result 79 states and 93 transitions. [2023-11-23 21:39:36,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:39:36,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2023-11-23 21:39:36,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:36,023 INFO L225 Difference]: With dead ends: 79 [2023-11-23 21:39:36,023 INFO L226 Difference]: Without dead ends: 77 [2023-11-23 21:39:36,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:39:36,026 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 4 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:36,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 108 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:36,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-23 21:39:36,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-23 21:39:36,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 63 states have (on average 1.4444444444444444) internal successors, (91), 76 states have internal predecessors, (91), 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 21:39:36,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2023-11-23 21:39:36,055 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 15 [2023-11-23 21:39:36,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:36,057 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2023-11-23 21:39:36,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 21:39:36,059 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2023-11-23 21:39:36,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 21:39:36,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:36,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:36,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:39:36,061 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:36,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:36,062 INFO L85 PathProgramCache]: Analyzing trace with hash -258577245, now seen corresponding path program 1 times [2023-11-23 21:39:36,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:36,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077434670] [2023-11-23 21:39:36,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:36,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:36,161 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 21:39:36,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:36,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077434670] [2023-11-23 21:39:36,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077434670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:36,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:36,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:39:36,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227652314] [2023-11-23 21:39:36,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:36,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:39:36,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:36,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:39:36,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:39:36,164 INFO L87 Difference]: Start difference. First operand 77 states and 91 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 21:39:36,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:36,227 INFO L93 Difference]: Finished difference Result 93 states and 109 transitions. [2023-11-23 21:39:36,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:39:36,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2023-11-23 21:39:36,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:36,229 INFO L225 Difference]: With dead ends: 93 [2023-11-23 21:39:36,229 INFO L226 Difference]: Without dead ends: 91 [2023-11-23 21:39:36,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:39:36,234 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 7 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:36,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 112 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:39:36,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-23 21:39:36,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2023-11-23 21:39:36,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 73 states have (on average 1.4383561643835616) internal successors, (105), 86 states have internal predecessors, (105), 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 21:39:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 105 transitions. [2023-11-23 21:39:36,260 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 105 transitions. Word has length 16 [2023-11-23 21:39:36,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:36,260 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 105 transitions. [2023-11-23 21:39:36,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 21:39:36,261 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 105 transitions. [2023-11-23 21:39:36,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 21:39:36,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:36,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:36,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:39:36,263 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:36,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:36,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1331356088, now seen corresponding path program 1 times [2023-11-23 21:39:36,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:36,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683348490] [2023-11-23 21:39:36,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:36,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:36,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:36,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:36,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683348490] [2023-11-23 21:39:36,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683348490] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:39:36,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000993951] [2023-11-23 21:39:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:36,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:36,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:39:36,383 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:39:36,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:39:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:36,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:39:36,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:39:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:36,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:39:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:36,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000993951] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:39:36,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:39:36,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2023-11-23 21:39:36,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894211599] [2023-11-23 21:39:36,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:39:36,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:39:36,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:36,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:39:36,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:39:36,608 INFO L87 Difference]: Start difference. First operand 87 states and 105 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 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 21:39:36,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:36,692 INFO L93 Difference]: Finished difference Result 150 states and 175 transitions. [2023-11-23 21:39:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:39:36,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 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 20 [2023-11-23 21:39:36,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:36,694 INFO L225 Difference]: With dead ends: 150 [2023-11-23 21:39:36,695 INFO L226 Difference]: Without dead ends: 93 [2023-11-23 21:39:36,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:39:36,696 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 29 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:36,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 130 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:36,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-23 21:39:36,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 89. [2023-11-23 21:39:36,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 75 states have (on average 1.4266666666666667) internal successors, (107), 88 states have internal predecessors, (107), 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 21:39:36,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 107 transitions. [2023-11-23 21:39:36,706 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 107 transitions. Word has length 20 [2023-11-23 21:39:36,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:36,706 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 107 transitions. [2023-11-23 21:39:36,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 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 21:39:36,707 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 107 transitions. [2023-11-23 21:39:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 21:39:36,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:36,709 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:36,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:39:36,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 21:39:36,922 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:36,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:36,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1548861912, now seen corresponding path program 1 times [2023-11-23 21:39:36,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:36,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863338321] [2023-11-23 21:39:36,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:36,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:37,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:39:37,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:37,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863338321] [2023-11-23 21:39:37,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863338321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:37,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:37,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:39:37,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724523616] [2023-11-23 21:39:37,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:37,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:39:37,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:37,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:39:37,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:39:37,109 INFO L87 Difference]: Start difference. First operand 89 states and 107 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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 21:39:37,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:37,195 INFO L93 Difference]: Finished difference Result 117 states and 131 transitions. [2023-11-23 21:39:37,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:39:37,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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 22 [2023-11-23 21:39:37,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:37,197 INFO L225 Difference]: With dead ends: 117 [2023-11-23 21:39:37,197 INFO L226 Difference]: Without dead ends: 100 [2023-11-23 21:39:37,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:39:37,198 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 144 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:37,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 48 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:37,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-23 21:39:37,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 89. [2023-11-23 21:39:37,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 75 states have (on average 1.4133333333333333) internal successors, (106), 88 states have internal predecessors, (106), 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 21:39:37,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 106 transitions. [2023-11-23 21:39:37,207 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 106 transitions. Word has length 22 [2023-11-23 21:39:37,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:37,207 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 106 transitions. [2023-11-23 21:39:37,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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 21:39:37,207 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 106 transitions. [2023-11-23 21:39:37,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 21:39:37,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:37,209 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:37,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 21:39:37,209 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:37,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:37,210 INFO L85 PathProgramCache]: Analyzing trace with hash 468349836, now seen corresponding path program 1 times [2023-11-23 21:39:37,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:37,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397394301] [2023-11-23 21:39:37,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:37,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:37,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:37,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:37,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397394301] [2023-11-23 21:39:37,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397394301] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:39:37,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958219694] [2023-11-23 21:39:37,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:37,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:37,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:39:37,311 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:39:37,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:39:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:37,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:39:37,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:39:37,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:39:37,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:39:37,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958219694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:37,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:39:37,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-11-23 21:39:37,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893293474] [2023-11-23 21:39:37,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:37,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:39:37,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:37,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:39:37,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:39:37,513 INFO L87 Difference]: Start difference. First operand 89 states and 106 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 21:39:37,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:37,679 INFO L93 Difference]: Finished difference Result 100 states and 111 transitions. [2023-11-23 21:39:37,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:39:37,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2023-11-23 21:39:37,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:37,683 INFO L225 Difference]: With dead ends: 100 [2023-11-23 21:39:37,683 INFO L226 Difference]: Without dead ends: 97 [2023-11-23 21:39:37,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:39:37,684 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 20 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:37,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 86 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:37,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-23 21:39:37,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 89. [2023-11-23 21:39:37,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 88 states have internal predecessors, (103), 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 21:39:37,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 103 transitions. [2023-11-23 21:39:37,700 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 103 transitions. Word has length 22 [2023-11-23 21:39:37,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:37,701 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 103 transitions. [2023-11-23 21:39:37,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 21:39:37,701 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 103 transitions. [2023-11-23 21:39:37,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 21:39:37,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:37,706 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:37,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-23 21:39:37,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:37,928 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:37,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:37,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1633943116, now seen corresponding path program 1 times [2023-11-23 21:39:37,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:37,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755341935] [2023-11-23 21:39:37,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:37,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:37,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 21:39:37,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:37,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755341935] [2023-11-23 21:39:37,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755341935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:37,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:37,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:39:37,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673178775] [2023-11-23 21:39:37,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:37,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:39:37,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:37,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:39:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:39:37,985 INFO L87 Difference]: Start difference. First operand 89 states and 103 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 21:39:38,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:38,058 INFO L93 Difference]: Finished difference Result 97 states and 108 transitions. [2023-11-23 21:39:38,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:39:38,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2023-11-23 21:39:38,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:38,060 INFO L225 Difference]: With dead ends: 97 [2023-11-23 21:39:38,060 INFO L226 Difference]: Without dead ends: 95 [2023-11-23 21:39:38,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 21:39:38,061 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:38,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 72 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:38,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-23 21:39:38,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 89. [2023-11-23 21:39:38,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 88 states have internal predecessors, (101), 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 21:39:38,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2023-11-23 21:39:38,068 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 23 [2023-11-23 21:39:38,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:38,068 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2023-11-23 21:39:38,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 21:39:38,069 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2023-11-23 21:39:38,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 21:39:38,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:38,070 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:38,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 21:39:38,070 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:38,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:38,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1738692978, now seen corresponding path program 1 times [2023-11-23 21:39:38,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:38,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440718340] [2023-11-23 21:39:38,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:38,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:38,161 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 21:39:38,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:38,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440718340] [2023-11-23 21:39:38,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440718340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:38,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:38,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:39:38,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105395210] [2023-11-23 21:39:38,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:38,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:39:38,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:38,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:39:38,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:39:38,164 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 21:39:38,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:38,206 INFO L93 Difference]: Finished difference Result 89 states and 101 transitions. [2023-11-23 21:39:38,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:39:38,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2023-11-23 21:39:38,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:38,208 INFO L225 Difference]: With dead ends: 89 [2023-11-23 21:39:38,208 INFO L226 Difference]: Without dead ends: 88 [2023-11-23 21:39:38,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:39:38,209 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 18 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:38,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 85 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:39:38,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-23 21:39:38,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-23 21:39:38,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 75 states have (on average 1.32) internal successors, (99), 87 states have internal predecessors, (99), 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 21:39:38,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2023-11-23 21:39:38,216 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 25 [2023-11-23 21:39:38,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:38,217 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2023-11-23 21:39:38,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 21:39:38,217 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2023-11-23 21:39:38,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 21:39:38,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:38,218 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:38,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 21:39:38,219 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:38,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:38,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1293380275, now seen corresponding path program 1 times [2023-11-23 21:39:38,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:38,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148868510] [2023-11-23 21:39:38,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:38,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:38,279 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:39:38,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:38,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148868510] [2023-11-23 21:39:38,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148868510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:38,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:38,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:39:38,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941310920] [2023-11-23 21:39:38,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:38,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:39:38,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:38,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:39:38,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:39:38,282 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 21:39:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:38,348 INFO L93 Difference]: Finished difference Result 93 states and 104 transitions. [2023-11-23 21:39:38,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:39:38,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 29 [2023-11-23 21:39:38,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:38,350 INFO L225 Difference]: With dead ends: 93 [2023-11-23 21:39:38,350 INFO L226 Difference]: Without dead ends: 91 [2023-11-23 21:39:38,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:39:38,351 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:38,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 89 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:38,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-23 21:39:38,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-23 21:39:38,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 90 states have internal predecessors, (102), 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 21:39:38,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2023-11-23 21:39:38,358 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 29 [2023-11-23 21:39:38,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:38,359 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2023-11-23 21:39:38,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 21:39:38,359 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2023-11-23 21:39:38,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 21:39:38,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:38,360 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:38,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 21:39:38,361 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:38,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:38,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1771838847, now seen corresponding path program 1 times [2023-11-23 21:39:38,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:38,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278438197] [2023-11-23 21:39:38,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:38,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:39:38,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:38,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278438197] [2023-11-23 21:39:38,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278438197] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:39:38,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868931846] [2023-11-23 21:39:38,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:38,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:38,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:39:38,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:39:38,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:39:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:38,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:39:38,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:39:38,612 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:39:38,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:39:38,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868931846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:38,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:39:38,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-23 21:39:38,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128392669] [2023-11-23 21:39:38,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:38,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:39:38,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:38,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:39:38,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:39:38,615 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 21:39:38,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:38,715 INFO L93 Difference]: Finished difference Result 91 states and 102 transitions. [2023-11-23 21:39:38,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:39:38,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 36 [2023-11-23 21:39:38,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:38,717 INFO L225 Difference]: With dead ends: 91 [2023-11-23 21:39:38,717 INFO L226 Difference]: Without dead ends: 88 [2023-11-23 21:39:38,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:39:38,718 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 27 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:38,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 91 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:38,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-23 21:39:38,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-23 21:39:38,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 78 states have (on average 1.2564102564102564) internal successors, (98), 87 states have internal predecessors, (98), 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 21:39:38,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2023-11-23 21:39:38,726 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 36 [2023-11-23 21:39:38,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:38,726 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2023-11-23 21:39:38,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 21:39:38,727 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2023-11-23 21:39:38,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-23 21:39:38,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:38,728 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:38,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:39:38,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 21:39:38,952 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:38,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:38,953 INFO L85 PathProgramCache]: Analyzing trace with hash -907570517, now seen corresponding path program 1 times [2023-11-23 21:39:38,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:38,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782413691] [2023-11-23 21:39:38,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:38,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:39,040 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:39:39,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:39,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782413691] [2023-11-23 21:39:39,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782413691] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:39:39,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741216810] [2023-11-23 21:39:39,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:39,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:39,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:39:39,042 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:39:39,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:39:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:39,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:39:39,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:39:39,170 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:39:39,171 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:39:39,253 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:39:39,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741216810] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:39:39,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:39:39,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-23 21:39:39,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650418119] [2023-11-23 21:39:39,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:39:39,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 21:39:39,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:39,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 21:39:39,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:39:39,256 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 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 21:39:39,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:39,428 INFO L93 Difference]: Finished difference Result 133 states and 152 transitions. [2023-11-23 21:39:39,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:39:39,429 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 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 37 [2023-11-23 21:39:39,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:39,430 INFO L225 Difference]: With dead ends: 133 [2023-11-23 21:39:39,431 INFO L226 Difference]: Without dead ends: 130 [2023-11-23 21:39:39,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:39:39,432 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 50 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:39,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 160 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:39,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-23 21:39:39,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 123. [2023-11-23 21:39:39,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 114 states have (on average 1.2543859649122806) internal successors, (143), 122 states have internal predecessors, (143), 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 21:39:39,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2023-11-23 21:39:39,443 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 37 [2023-11-23 21:39:39,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:39,445 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2023-11-23 21:39:39,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 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 21:39:39,445 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2023-11-23 21:39:39,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-23 21:39:39,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:39,446 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:39,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:39:39,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 21:39:39,663 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:39,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:39,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1930085121, now seen corresponding path program 1 times [2023-11-23 21:39:39,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:39,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579952988] [2023-11-23 21:39:39,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:39,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:39,827 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:39:39,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:39,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579952988] [2023-11-23 21:39:39,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579952988] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:39:39,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34641437] [2023-11-23 21:39:39,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:39,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:39,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:39:39,834 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:39:39,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:39:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:39,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:39:39,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:39:39,996 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:39:39,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:39:39,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34641437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:39,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:39:39,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-11-23 21:39:39,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083650045] [2023-11-23 21:39:39,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:39,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:39:39,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:39,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:39:39,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:39:39,998 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 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 21:39:40,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:40,107 INFO L93 Difference]: Finished difference Result 126 states and 144 transitions. [2023-11-23 21:39:40,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:39:40,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 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 38 [2023-11-23 21:39:40,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:40,109 INFO L225 Difference]: With dead ends: 126 [2023-11-23 21:39:40,109 INFO L226 Difference]: Without dead ends: 125 [2023-11-23 21:39:40,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:39:40,110 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 46 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:40,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 95 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:40,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-23 21:39:40,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2023-11-23 21:39:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 114 states have (on average 1.236842105263158) internal successors, (141), 122 states have internal predecessors, (141), 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 21:39:40,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2023-11-23 21:39:40,121 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 38 [2023-11-23 21:39:40,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:40,121 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2023-11-23 21:39:40,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 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 21:39:40,121 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2023-11-23 21:39:40,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 21:39:40,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:40,123 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:40,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:39:40,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 21:39:40,342 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:40,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:40,342 INFO L85 PathProgramCache]: Analyzing trace with hash -296903315, now seen corresponding path program 1 times [2023-11-23 21:39:40,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:40,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333450161] [2023-11-23 21:39:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:40,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:40,423 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 21:39:40,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:40,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333450161] [2023-11-23 21:39:40,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333450161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:40,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:40,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:39:40,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078647319] [2023-11-23 21:39:40,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:40,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:39:40,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:40,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:39:40,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:39:40,427 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 21:39:40,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:40,465 INFO L93 Difference]: Finished difference Result 124 states and 141 transitions. [2023-11-23 21:39:40,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:39:40,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 39 [2023-11-23 21:39:40,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:40,466 INFO L225 Difference]: With dead ends: 124 [2023-11-23 21:39:40,466 INFO L226 Difference]: Without dead ends: 123 [2023-11-23 21:39:40,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 21:39:40,469 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:40,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 64 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:39:40,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-23 21:39:40,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-11-23 21:39:40,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 114 states have (on average 1.219298245614035) internal successors, (139), 122 states have internal predecessors, (139), 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 21:39:40,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 139 transitions. [2023-11-23 21:39:40,479 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 139 transitions. Word has length 39 [2023-11-23 21:39:40,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:40,480 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 139 transitions. [2023-11-23 21:39:40,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 21:39:40,480 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 139 transitions. [2023-11-23 21:39:40,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-23 21:39:40,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:40,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:40,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-23 21:39:40,482 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:40,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:40,482 INFO L85 PathProgramCache]: Analyzing trace with hash -686846556, now seen corresponding path program 1 times [2023-11-23 21:39:40,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:40,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963799956] [2023-11-23 21:39:40,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:40,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:40,652 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 21:39:40,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:40,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963799956] [2023-11-23 21:39:40,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963799956] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:39:40,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71174356] [2023-11-23 21:39:40,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:40,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:40,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:39:40,655 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:39:40,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:39:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:40,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:39:40,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:39:40,792 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 21:39:40,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:39:40,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71174356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:40,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:39:40,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-23 21:39:40,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211344681] [2023-11-23 21:39:40,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:40,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:39:40,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:40,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:39:40,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:39:40,798 INFO L87 Difference]: Start difference. First operand 123 states and 139 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 21:39:40,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:40,891 INFO L93 Difference]: Finished difference Result 123 states and 139 transitions. [2023-11-23 21:39:40,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:39:40,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 47 [2023-11-23 21:39:40,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:40,892 INFO L225 Difference]: With dead ends: 123 [2023-11-23 21:39:40,893 INFO L226 Difference]: Without dead ends: 122 [2023-11-23 21:39:40,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:39:40,894 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 30 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:40,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 91 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:40,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-23 21:39:40,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-11-23 21:39:40,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 114 states have (on average 1.2105263157894737) internal successors, (138), 121 states have internal predecessors, (138), 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 21:39:40,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 138 transitions. [2023-11-23 21:39:40,906 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 138 transitions. Word has length 47 [2023-11-23 21:39:40,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:40,906 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 138 transitions. [2023-11-23 21:39:40,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 21:39:40,907 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 138 transitions. [2023-11-23 21:39:40,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-23 21:39:40,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:40,908 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:40,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:39:41,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:41,138 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:41,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1767358632, now seen corresponding path program 1 times [2023-11-23 21:39:41,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:41,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934892396] [2023-11-23 21:39:41,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:41,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:41,256 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 21:39:41,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:41,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934892396] [2023-11-23 21:39:41,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934892396] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:39:41,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582295427] [2023-11-23 21:39:41,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:41,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:41,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:39:41,259 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:39:41,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 21:39:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:41,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:39:41,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:39:41,506 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:39:41,507 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:39:41,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582295427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:41,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:39:41,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2023-11-23 21:39:41,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612095898] [2023-11-23 21:39:41,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:41,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:39:41,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:41,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:39:41,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:39:41,509 INFO L87 Difference]: Start difference. First operand 122 states and 138 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 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 21:39:41,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:41,709 INFO L93 Difference]: Finished difference Result 123 states and 139 transitions. [2023-11-23 21:39:41,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 21:39:41,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 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 47 [2023-11-23 21:39:41,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:41,710 INFO L225 Difference]: With dead ends: 123 [2023-11-23 21:39:41,711 INFO L226 Difference]: Without dead ends: 120 [2023-11-23 21:39:41,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2023-11-23 21:39:41,712 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 31 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:41,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 81 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:41,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-23 21:39:41,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2023-11-23 21:39:41,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 114 states have (on average 1.1578947368421053) internal successors, (132), 118 states have internal predecessors, (132), 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 21:39:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 132 transitions. [2023-11-23 21:39:41,724 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 132 transitions. Word has length 47 [2023-11-23 21:39:41,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:41,724 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 132 transitions. [2023-11-23 21:39:41,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 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 21:39:41,725 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 132 transitions. [2023-11-23 21:39:41,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 21:39:41,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:41,726 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:41,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:39:41,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-23 21:39:41,951 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:41,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:41,952 INFO L85 PathProgramCache]: Analyzing trace with hash 182593382, now seen corresponding path program 1 times [2023-11-23 21:39:41,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:41,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552151468] [2023-11-23 21:39:41,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:41,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 21:39:42,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:42,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552151468] [2023-11-23 21:39:42,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552151468] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:39:42,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535777301] [2023-11-23 21:39:42,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:42,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:42,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:39:42,089 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:39:42,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 21:39:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:42,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:39:42,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:39:42,211 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 21:39:42,211 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:39:42,264 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 21:39:42,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535777301] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:39:42,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:39:42,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-23 21:39:42,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793574612] [2023-11-23 21:39:42,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:39:42,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 21:39:42,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:42,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 21:39:42,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:39:42,267 INFO L87 Difference]: Start difference. First operand 119 states and 132 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 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 21:39:42,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:42,432 INFO L93 Difference]: Finished difference Result 141 states and 159 transitions. [2023-11-23 21:39:42,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 21:39:42,433 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 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 48 [2023-11-23 21:39:42,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:42,434 INFO L225 Difference]: With dead ends: 141 [2023-11-23 21:39:42,434 INFO L226 Difference]: Without dead ends: 140 [2023-11-23 21:39:42,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-23 21:39:42,436 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 102 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:42,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 85 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:42,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-23 21:39:42,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-11-23 21:39:42,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 135 states have (on average 1.1555555555555554) internal successors, (156), 139 states have internal predecessors, (156), 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 21:39:42,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 156 transitions. [2023-11-23 21:39:42,449 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 156 transitions. Word has length 48 [2023-11-23 21:39:42,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:42,449 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 156 transitions. [2023-11-23 21:39:42,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 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 21:39:42,450 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 156 transitions. [2023-11-23 21:39:42,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 21:39:42,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:42,450 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:42,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:39:42,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:42,674 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:42,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:42,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1046457344, now seen corresponding path program 1 times [2023-11-23 21:39:42,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:42,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746634600] [2023-11-23 21:39:42,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:42,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:42,769 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-23 21:39:42,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:42,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746634600] [2023-11-23 21:39:42,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746634600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:42,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:42,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:39:42,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073614227] [2023-11-23 21:39:42,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:42,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:39:42,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:42,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:39:42,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:39:42,772 INFO L87 Difference]: Start difference. First operand 140 states and 156 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 21:39:42,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:42,852 INFO L93 Difference]: Finished difference Result 140 states and 156 transitions. [2023-11-23 21:39:42,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:39:42,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 48 [2023-11-23 21:39:42,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:42,854 INFO L225 Difference]: With dead ends: 140 [2023-11-23 21:39:42,854 INFO L226 Difference]: Without dead ends: 138 [2023-11-23 21:39:42,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:39:42,855 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 31 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:42,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 44 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:39:42,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-23 21:39:42,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-11-23 21:39:42,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 135 states have (on average 1.125925925925926) internal successors, (152), 137 states have internal predecessors, (152), 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 21:39:42,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 152 transitions. [2023-11-23 21:39:42,869 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 152 transitions. Word has length 48 [2023-11-23 21:39:42,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:42,869 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 152 transitions. [2023-11-23 21:39:42,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 21:39:42,870 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 152 transitions. [2023-11-23 21:39:42,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 21:39:42,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:42,871 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:42,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-23 21:39:42,872 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:42,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:42,872 INFO L85 PathProgramCache]: Analyzing trace with hash 645492042, now seen corresponding path program 2 times [2023-11-23 21:39:42,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:42,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099237086] [2023-11-23 21:39:42,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:42,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:43,850 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 48 proven. 25 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:39:43,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:43,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099237086] [2023-11-23 21:39:43,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099237086] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:39:43,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279228242] [2023-11-23 21:39:43,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:39:43,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:43,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:39:43,852 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:39:43,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 21:39:43,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 21:39:43,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:39:43,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:39:43,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:39:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 21:39:44,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:39:44,238 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 21:39:44,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279228242] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:39:44,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:39:44,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 3, 3] total 20 [2023-11-23 21:39:44,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694972136] [2023-11-23 21:39:44,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:39:44,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-23 21:39:44,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:44,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-23 21:39:44,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:39:44,242 INFO L87 Difference]: Start difference. First operand 138 states and 152 transitions. Second operand has 20 states, 20 states have (on average 5.35) internal successors, (107), 20 states have internal predecessors, (107), 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 21:39:44,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:44,776 INFO L93 Difference]: Finished difference Result 174 states and 194 transitions. [2023-11-23 21:39:44,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 21:39:44,777 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.35) internal successors, (107), 20 states have internal predecessors, (107), 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 69 [2023-11-23 21:39:44,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:44,778 INFO L225 Difference]: With dead ends: 174 [2023-11-23 21:39:44,778 INFO L226 Difference]: Without dead ends: 101 [2023-11-23 21:39:44,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 133 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=238, Invalid=884, Unknown=0, NotChecked=0, Total=1122 [2023-11-23 21:39:44,780 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 263 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:44,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 143 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:39:44,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-23 21:39:44,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-23 21:39:44,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 99 states have (on average 1.0808080808080809) internal successors, (107), 100 states have internal predecessors, (107), 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 21:39:44,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 107 transitions. [2023-11-23 21:39:44,789 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 107 transitions. Word has length 69 [2023-11-23 21:39:44,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:44,789 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 107 transitions. [2023-11-23 21:39:44,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.35) internal successors, (107), 20 states have internal predecessors, (107), 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 21:39:44,789 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 107 transitions. [2023-11-23 21:39:44,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 21:39:44,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:44,790 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:44,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:39:45,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:45,015 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:45,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:45,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1529280109, now seen corresponding path program 1 times [2023-11-23 21:39:45,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:45,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314935222] [2023-11-23 21:39:45,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:45,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:45,110 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-23 21:39:45,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:45,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314935222] [2023-11-23 21:39:45,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314935222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:39:45,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:39:45,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:39:45,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651512631] [2023-11-23 21:39:45,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:39:45,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:39:45,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:45,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:39:45,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:39:45,113 INFO L87 Difference]: Start difference. First operand 101 states and 107 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 21:39:45,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:45,155 INFO L93 Difference]: Finished difference Result 101 states and 107 transitions. [2023-11-23 21:39:45,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:39:45,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 80 [2023-11-23 21:39:45,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:45,156 INFO L225 Difference]: With dead ends: 101 [2023-11-23 21:39:45,156 INFO L226 Difference]: Without dead ends: 100 [2023-11-23 21:39:45,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:39:45,158 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:45,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 34 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:39:45,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-23 21:39:45,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-11-23 21:39:45,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.0707070707070707) internal successors, (106), 99 states have internal predecessors, (106), 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 21:39:45,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 106 transitions. [2023-11-23 21:39:45,166 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 106 transitions. Word has length 80 [2023-11-23 21:39:45,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:45,167 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 106 transitions. [2023-11-23 21:39:45,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 21:39:45,167 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 106 transitions. [2023-11-23 21:39:45,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-23 21:39:45,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:45,168 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:45,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-23 21:39:45,169 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-23 21:39:45,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:45,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1808775893, now seen corresponding path program 2 times [2023-11-23 21:39:45,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:45,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26637969] [2023-11-23 21:39:45,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:45,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:39:45,628 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:39:45,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:39:45,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26637969] [2023-11-23 21:39:45,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26637969] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:39:45,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26471077] [2023-11-23 21:39:45,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:39:45,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:45,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:39:45,631 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:39:45,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 21:39:45,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 21:39:45,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:39:45,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:39:45,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:39:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-23 21:39:46,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:39:46,320 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-23 21:39:46,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26471077] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:39:46,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:39:46,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 2] total 7 [2023-11-23 21:39:46,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742649271] [2023-11-23 21:39:46,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:39:46,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 21:39:46,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:39:46,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 21:39:46,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:39:46,324 INFO L87 Difference]: Start difference. First operand 100 states and 106 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 21:39:46,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:39:46,386 INFO L93 Difference]: Finished difference Result 100 states and 106 transitions. [2023-11-23 21:39:46,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:39:46,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 87 [2023-11-23 21:39:46,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:39:46,388 INFO L225 Difference]: With dead ends: 100 [2023-11-23 21:39:46,388 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:39:46,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:39:46,392 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 40 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:39:46,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 12 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:39:46,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:39:46,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:39:46,396 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 21:39:46,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:39:46,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2023-11-23 21:39:46,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:39:46,396 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:39:46,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 21:39:46,397 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:39:46,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:39:46,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-11-23 21:39:46,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-11-23 21:39:46,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-11-23 21:39:46,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-11-23 21:39:46,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-11-23 21:39:46,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-11-23 21:39:46,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2023-11-23 21:39:46,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2023-11-23 21:39:46,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2023-11-23 21:39:46,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2023-11-23 21:39:46,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-11-23 21:39:46,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-11-23 21:39:46,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-11-23 21:39:46,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-11-23 21:39:46,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-11-23 21:39:46,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-11-23 21:39:46,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:39:46,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:39:46,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:39:47,028 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-23 21:39:47,028 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-23 21:39:47,028 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 13 49) no Hoare annotation was computed. [2023-11-23 21:39:47,028 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-23 21:39:47,028 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-23 21:39:47,029 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2023-11-23 21:39:47,029 INFO L899 garLoopResultBuilder]: For program point L28-2(lines 28 41) no Hoare annotation was computed. [2023-11-23 21:39:47,029 INFO L899 garLoopResultBuilder]: For program point L28-4(lines 28 41) no Hoare annotation was computed. [2023-11-23 21:39:47,029 INFO L899 garLoopResultBuilder]: For program point L28-5(line 28) no Hoare annotation was computed. [2023-11-23 21:39:47,029 INFO L899 garLoopResultBuilder]: For program point L28-6(line 28) no Hoare annotation was computed. [2023-11-23 21:39:47,029 INFO L895 garLoopResultBuilder]: At program point L28-7(lines 28 41) the Hoare annotation is: (let ((.cse0 (<= 2 ~CELLCOUNT~0)) (.cse1 (= 2 |ULTIMATE.start_main_~MINVAL~0#1|)) (.cse2 (<= ~CELLCOUNT~0 2147483647)) (.cse3 (= ~CELLCOUNT~0 (* (div ~CELLCOUNT~0 2) 2)))) (or (and .cse0 (= 2 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 1) .cse1 .cse2 .cse3) (and (<= |ULTIMATE.start_main_~j~0#1| 1) .cse0 .cse1 .cse2 .cse3 (<= 2 |ULTIMATE.start_main_~i~0#1|)))) [2023-11-23 21:39:47,029 INFO L899 garLoopResultBuilder]: For program point L28-8(lines 28 41) no Hoare annotation was computed. [2023-11-23 21:39:47,030 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-23 21:39:47,030 INFO L899 garLoopResultBuilder]: For program point L45-2(line 45) no Hoare annotation was computed. [2023-11-23 21:39:47,030 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-23 21:39:47,030 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-23 21:39:47,030 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-23 21:39:47,030 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:39:47,030 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2023-11-23 21:39:47,030 INFO L899 garLoopResultBuilder]: For program point L5(lines 5 7) no Hoare annotation was computed. [2023-11-23 21:39:47,030 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2023-11-23 21:39:47,030 INFO L899 garLoopResultBuilder]: For program point L38-2(line 38) no Hoare annotation was computed. [2023-11-23 21:39:47,031 INFO L899 garLoopResultBuilder]: For program point L38-3(line 38) no Hoare annotation was computed. [2023-11-23 21:39:47,031 INFO L899 garLoopResultBuilder]: For program point L30-2(lines 30 40) no Hoare annotation was computed. [2023-11-23 21:39:47,031 INFO L899 garLoopResultBuilder]: For program point L30-3(line 30) no Hoare annotation was computed. [2023-11-23 21:39:47,031 INFO L899 garLoopResultBuilder]: For program point L30-4(line 30) no Hoare annotation was computed. [2023-11-23 21:39:47,031 INFO L895 garLoopResultBuilder]: At program point L30-5(lines 30 40) the Hoare annotation is: (let ((.cse0 (= 2 |ULTIMATE.start_main_~j~0#1|)) (.cse7 (<= 2 |ULTIMATE.start_main_~i~0#1|)) (.cse8 (<= |ULTIMATE.start_main_~i~0#1| 1073741823)) (.cse6 (<= |ULTIMATE.start_main_~j~0#1| 1)) (.cse1 (<= 2 ~CELLCOUNT~0)) (.cse2 (= |ULTIMATE.start_main_~i~0#1| 1)) (.cse3 (= 2 |ULTIMATE.start_main_~MINVAL~0#1|)) (.cse4 (<= ~CELLCOUNT~0 2147483647)) (.cse5 (= ~CELLCOUNT~0 (* (div ~CELLCOUNT~0 2) 2)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse3 .cse4 .cse5 .cse7 .cse8) (and .cse0 .cse1 .cse3 .cse4 .cse5 .cse7 .cse8) (and .cse6 .cse1 .cse2 .cse3 .cse4 .cse5))) [2023-11-23 21:39:47,031 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2023-11-23 21:39:47,031 INFO L899 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2023-11-23 21:39:47,032 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2023-11-23 21:39:47,032 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 39) no Hoare annotation was computed. [2023-11-23 21:39:47,032 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-23 21:39:47,032 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2023-11-23 21:39:47,032 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 47) no Hoare annotation was computed. [2023-11-23 21:39:47,032 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-23 21:39:47,032 INFO L899 garLoopResultBuilder]: For program point L16-2(lines 16 47) no Hoare annotation was computed. [2023-11-23 21:39:47,032 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2023-11-23 21:39:47,032 INFO L899 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2023-11-23 21:39:47,032 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:39:47,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-23 21:39:47,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-23 21:39:47,033 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-11-23 21:39:47,033 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2023-11-23 21:39:47,033 INFO L899 garLoopResultBuilder]: For program point L34-2(line 34) no Hoare annotation was computed. [2023-11-23 21:39:47,033 INFO L899 garLoopResultBuilder]: For program point L34-3(line 34) no Hoare annotation was computed. [2023-11-23 21:39:47,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-23 21:39:47,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-23 21:39:47,034 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-23 21:39:47,034 INFO L899 garLoopResultBuilder]: For program point L43-3(line 43) no Hoare annotation was computed. [2023-11-23 21:39:47,034 INFO L899 garLoopResultBuilder]: For program point L43-4(line 43) no Hoare annotation was computed. [2023-11-23 21:39:47,034 INFO L895 garLoopResultBuilder]: At program point L43-5(lines 43 46) the Hoare annotation is: (let ((.cse0 (<= 2 ~CELLCOUNT~0)) (.cse1 (= 2 |ULTIMATE.start_main_~MINVAL~0#1|)) (.cse2 (<= ~CELLCOUNT~0 2147483647)) (.cse3 (= ~CELLCOUNT~0 (* (div ~CELLCOUNT~0 2) 2)))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 .cse2 .cse3))) [2023-11-23 21:39:47,034 INFO L899 garLoopResultBuilder]: For program point L43-6(lines 43 46) no Hoare annotation was computed. [2023-11-23 21:39:47,040 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:39:47,043 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:39:47,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:39:47 BoogieIcfgContainer [2023-11-23 21:39:47,062 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:39:47,062 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:39:47,062 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:39:47,063 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:39:47,063 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:39:33" (3/4) ... [2023-11-23 21:39:47,066 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:39:47,077 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-23 21:39:47,077 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-23 21:39:47,078 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 21:39:47,078 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:39:47,217 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 21:39:47,217 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 21:39:47,218 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:39:47,218 INFO L158 Benchmark]: Toolchain (without parser) took 14606.56ms. Allocated memory was 138.4MB in the beginning and 247.5MB in the end (delta: 109.1MB). Free memory was 103.5MB in the beginning and 216.7MB in the end (delta: -113.2MB). Peak memory consumption was 137.4MB. Max. memory is 16.1GB. [2023-11-23 21:39:47,219 INFO L158 Benchmark]: CDTParser took 1.36ms. Allocated memory is still 138.4MB. Free memory was 109.3MB in the beginning and 109.2MB in the end (delta: 83.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:39:47,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.70ms. Allocated memory is still 138.4MB. Free memory was 103.5MB in the beginning and 105.6MB in the end (delta: -2.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:39:47,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.93ms. Allocated memory is still 138.4MB. Free memory was 105.6MB in the beginning and 103.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:39:47,220 INFO L158 Benchmark]: Boogie Preprocessor took 44.33ms. Allocated memory is still 138.4MB. Free memory was 103.9MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:39:47,221 INFO L158 Benchmark]: RCFGBuilder took 644.57ms. Allocated memory is still 138.4MB. Free memory was 101.8MB in the beginning and 85.7MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:39:47,221 INFO L158 Benchmark]: TraceAbstraction took 13366.67ms. Allocated memory was 138.4MB in the beginning and 247.5MB in the end (delta: 109.1MB). Free memory was 85.0MB in the beginning and 80.5MB in the end (delta: 4.5MB). Peak memory consumption was 115.0MB. Max. memory is 16.1GB. [2023-11-23 21:39:47,221 INFO L158 Benchmark]: Witness Printer took 155.58ms. Allocated memory is still 247.5MB. Free memory was 80.5MB in the beginning and 216.7MB in the end (delta: -136.2MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-23 21:39:47,223 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.36ms. Allocated memory is still 138.4MB. Free memory was 109.3MB in the beginning and 109.2MB in the end (delta: 83.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.70ms. Allocated memory is still 138.4MB. Free memory was 103.5MB in the beginning and 105.6MB in the end (delta: -2.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.93ms. Allocated memory is still 138.4MB. Free memory was 105.6MB in the beginning and 103.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.33ms. Allocated memory is still 138.4MB. Free memory was 103.9MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 644.57ms. Allocated memory is still 138.4MB. Free memory was 101.8MB in the beginning and 85.7MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13366.67ms. Allocated memory was 138.4MB in the beginning and 247.5MB in the end (delta: 109.1MB). Free memory was 85.0MB in the beginning and 80.5MB in the end (delta: 4.5MB). Peak memory consumption was 115.0MB. Max. memory is 16.1GB. * Witness Printer took 155.58ms. Allocated memory is still 247.5MB. Free memory was 80.5MB in the beginning and 216.7MB in the end (delta: -136.2MB). Peak memory consumption was 5.4MB. 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: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: 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: 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: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: 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, 52 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 13.3s, OverallIterations: 26, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1197 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1197 mSDsluCounter, 2021 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1197 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1856 IncrementalHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 824 mSDtfsCounter, 1856 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 850 GetRequests, 688 SyntacticMatches, 6 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=22, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 26 MinimizatonAttempts, 107 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 24 NumberOfFragments, 204 HoareAnnotationTreeSize, 3 FomulaSimplifications, 148 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 295 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 1264 NumberOfCodeBlocks, 1136 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 1484 ConstructedInterpolants, 0 QuantifiedInterpolants, 5587 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1075 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 41 InterpolantComputations, 21 PerfectInterpolantSequences, 1012/1235 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: 30]: Loop Invariant Derived loop invariant: (((((((((2 == j) && (2 <= CELLCOUNT)) && (i == 1)) && (2 == MINVAL)) && (CELLCOUNT <= 2147483647)) && (CELLCOUNT == ((CELLCOUNT / 2) * 2))) || (((((((j <= 1) && (2 <= CELLCOUNT)) && (2 == MINVAL)) && (CELLCOUNT <= 2147483647)) && (CELLCOUNT == ((CELLCOUNT / 2) * 2))) && (2 <= i)) && (i <= 1073741823))) || (((((((2 == j) && (2 <= CELLCOUNT)) && (2 == MINVAL)) && (CELLCOUNT <= 2147483647)) && (CELLCOUNT == ((CELLCOUNT / 2) * 2))) && (2 <= i)) && (i <= 1073741823))) || ((((((j <= 1) && (2 <= CELLCOUNT)) && (i == 1)) && (2 == MINVAL)) && (CELLCOUNT <= 2147483647)) && (CELLCOUNT == ((CELLCOUNT / 2) * 2)))) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((((((2 <= CELLCOUNT) && (2 == i)) && (2 == MINVAL)) && (CELLCOUNT <= 2147483647)) && (CELLCOUNT == ((CELLCOUNT / 2) * 2))) || (((((2 <= CELLCOUNT) && (i == 1)) && (2 == MINVAL)) && (CELLCOUNT <= 2147483647)) && (CELLCOUNT == ((CELLCOUNT / 2) * 2)))) || ((((((j <= 1) && (2 <= CELLCOUNT)) && (2 == MINVAL)) && (CELLCOUNT <= 2147483647)) && (CELLCOUNT == ((CELLCOUNT / 2) * 2))) && (2 <= i))) - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: ((((((i == 0) && (2 <= CELLCOUNT)) && (2 == MINVAL)) && (CELLCOUNT <= 2147483647)) && (CELLCOUNT == ((CELLCOUNT / 2) * 2))) || (((((1 <= i) && (2 <= CELLCOUNT)) && (2 == MINVAL)) && (CELLCOUNT <= 2147483647)) && (CELLCOUNT == ((CELLCOUNT / 2) * 2)))) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:39:47,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_789eb8fa-64b5-42f0-b3c7-9bf6c4c02521/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