./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/modn.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/modn.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1b107a3e17c36933ddc5a5cff6ab95f9f0d71df794eec32ec4a28d109efd829 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:21:26,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:21:27,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:21:27,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:21:27,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:21:27,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:21:27,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:21:27,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:21:27,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:21:27,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:21:27,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:21:27,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:21:27,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:21:27,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:21:27,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:21:27,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:21:27,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:21:27,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:21:27,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:21:27,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:21:27,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:21:27,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:21:27,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:21:27,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:21:27,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:21:27,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:21:27,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:21:27,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:21:27,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:21:27,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:21:27,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:21:27,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:21:27,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:21:27,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:21:27,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:21:27,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:21:27,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:21:27,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:21:27,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:21:27,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:21:27,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:21:27,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:21:27,152 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:21:27,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:21:27,152 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:21:27,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:21:27,153 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:21:27,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:21:27,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:21:27,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:21:27,155 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:21:27,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:21:27,155 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:21:27,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:21:27,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:21:27,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:21:27,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:21:27,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:21:27,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:21:27,157 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:21:27,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:21:27,157 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:21:27,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:21:27,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:21:27,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:21:27,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:21:27,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:21:27,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:21:27,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:21:27,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:21:27,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:21:27,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:21:27,163 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:21:27,164 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:21:27,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:21:27,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1b107a3e17c36933ddc5a5cff6ab95f9f0d71df794eec32ec4a28d109efd829 [2022-11-16 12:21:27,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:21:27,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:21:27,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:21:27,553 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:21:27,554 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:21:27,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/array-fpi/modn.c [2022-11-16 12:21:27,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/data/85261631e/98212490211c4e1ea6e5d6e20471261d/FLAGd262cdb78 [2022-11-16 12:21:28,112 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:21:28,112 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/sv-benchmarks/c/array-fpi/modn.c [2022-11-16 12:21:28,119 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/data/85261631e/98212490211c4e1ea6e5d6e20471261d/FLAGd262cdb78 [2022-11-16 12:21:28,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/data/85261631e/98212490211c4e1ea6e5d6e20471261d [2022-11-16 12:21:28,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:21:28,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:21:28,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:21:28,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:21:28,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:21:28,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bed0058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28, skipping insertion in model container [2022-11-16 12:21:28,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:21:28,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:21:28,765 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/sv-benchmarks/c/array-fpi/modn.c[587,600] [2022-11-16 12:21:28,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:21:28,820 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:21:28,840 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/sv-benchmarks/c/array-fpi/modn.c[587,600] [2022-11-16 12:21:28,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:21:28,889 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:21:28,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28 WrapperNode [2022-11-16 12:21:28,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:21:28,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:21:28,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:21:28,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:21:28,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,951 INFO L138 Inliner]: procedures = 17, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2022-11-16 12:21:28,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:21:28,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:21:28,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:21:28,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:21:28,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,975 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:21:28,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:21:28,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:21:28,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:21:28,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28" (1/1) ... [2022-11-16 12:21:28,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:21:29,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:21:29,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:21:29,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:21:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:21:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:21:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:21:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:21:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:21:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:21:29,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:21:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:21:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:21:29,144 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:21:29,146 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:21:29,368 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:21:29,375 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:21:29,376 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 12:21:29,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:29 BoogieIcfgContainer [2022-11-16 12:21:29,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:21:29,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:21:29,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:21:29,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:21:29,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:21:28" (1/3) ... [2022-11-16 12:21:29,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38117e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:21:29, skipping insertion in model container [2022-11-16 12:21:29,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:28" (2/3) ... [2022-11-16 12:21:29,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38117e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:21:29, skipping insertion in model container [2022-11-16 12:21:29,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:29" (3/3) ... [2022-11-16 12:21:29,401 INFO L112 eAbstractionObserver]: Analyzing ICFG modn.c [2022-11-16 12:21:29,425 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:21:29,425 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:21:29,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:21:29,532 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=LoopsAndPotentialCycles, 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;@4dbac29d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:21:29,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:21:29,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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) [2022-11-16 12:21:29,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 12:21:29,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:29,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:29,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:21:29,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:29,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1828546148, now seen corresponding path program 1 times [2022-11-16 12:21:29,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:29,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418779515] [2022-11-16 12:21:29,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:29,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:29,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:29,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:29,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418779515] [2022-11-16 12:21:29,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418779515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:29,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:29,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:29,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983556048] [2022-11-16 12:21:29,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:29,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:21:29,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:29,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:21:29,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:21:29,855 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-16 12:21:29,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:29,878 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2022-11-16 12:21:29,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:21:29,882 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-11-16 12:21:29,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:29,892 INFO L225 Difference]: With dead ends: 38 [2022-11-16 12:21:29,892 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 12:21:29,895 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 [2022-11-16 12:21:29,899 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:29,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:21:29,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 12:21:29,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-16 12:21:29,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2022-11-16 12:21:29,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-16 12:21:29,943 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2022-11-16 12:21:29,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:29,948 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-16 12:21:29,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-16 12:21:29,950 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-16 12:21:29,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 12:21:29,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:29,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:29,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:21:29,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:21:29,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:29,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1148487778, now seen corresponding path program 1 times [2022-11-16 12:21:29,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:29,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280717853] [2022-11-16 12:21:29,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:29,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:30,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:30,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280717853] [2022-11-16 12:21:30,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280717853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:30,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:30,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:21:30,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021338218] [2022-11-16 12:21:30,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:30,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:21:30,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:30,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:21:30,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:21:30,257 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-11-16 12:21:30,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:30,329 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-11-16 12:21:30,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:21:30,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2022-11-16 12:21:30,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:30,331 INFO L225 Difference]: With dead ends: 37 [2022-11-16 12:21:30,331 INFO L226 Difference]: Without dead ends: 27 [2022-11-16 12:21:30,332 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 [2022-11-16 12:21:30,334 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 23 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:30,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 15 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:21:30,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-16 12:21:30,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2022-11-16 12:21:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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) [2022-11-16 12:21:30,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-16 12:21:30,342 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2022-11-16 12:21:30,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:30,343 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-16 12:21:30,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-11-16 12:21:30,343 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-16 12:21:30,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 12:21:30,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:30,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:30,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:21:30,345 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:21:30,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash 586911962, now seen corresponding path program 1 times [2022-11-16 12:21:30,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:30,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922978256] [2022-11-16 12:21:30,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:30,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:30,384 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:21:30,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1664904510] [2022-11-16 12:21:30,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:30,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:21:30,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:21:30,392 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:21:30,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:21:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:30,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-16 12:21:30,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:30,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:21:30,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:21:31,046 INFO L321 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2022-11-16 12:21:31,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2022-11-16 12:21:31,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2022-11-16 12:21:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:31,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:21:33,653 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse3 (< c_~N~0 0)) (.cse6 (mod .cse7 c_~N~0))) (let ((.cse0 (= .cse6 0)) (.cse1 (< .cse7 0)) (.cse5 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (not .cse3))) (and (or (and (not .cse0) .cse1) (let ((.cse2 (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (store (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse5 .cse6) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))) (and (or .cse2 .cse3) (or .cse4 .cse2)))) (or .cse0 (not .cse1) (and (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (store (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse5 (+ .cse6 (* (- 1) c_~N~0))) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) .cse3) (or (forall ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (store (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) .cse5 (+ c_~N~0 .cse6)) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) .cse4))))))) is different from false [2022-11-16 12:21:40,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-16 12:21:40,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:40,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922978256] [2022-11-16 12:21:40,597 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:21:40,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664904510] [2022-11-16 12:21:40,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664904510] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:21:40,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:21:40,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2022-11-16 12:21:40,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131057805] [2022-11-16 12:21:40,599 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:21:40,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 12:21:40,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:40,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 12:21:40,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=266, Unknown=3, NotChecked=34, Total=380 [2022-11-16 12:21:40,602 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 20 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 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) [2022-11-16 12:21:41,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:41,316 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-11-16 12:21:41,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:21:41,318 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 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 [2022-11-16 12:21:41,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:41,319 INFO L225 Difference]: With dead ends: 37 [2022-11-16 12:21:41,319 INFO L226 Difference]: Without dead ends: 35 [2022-11-16 12:21:41,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=138, Invalid=415, Unknown=3, NotChecked=44, Total=600 [2022-11-16 12:21:41,321 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 26 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:41,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 63 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 80 Invalid, 0 Unknown, 43 Unchecked, 0.3s Time] [2022-11-16 12:21:41,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-16 12:21:41,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 28. [2022-11-16 12:21:41,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 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) [2022-11-16 12:21:41,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-11-16 12:21:41,331 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2022-11-16 12:21:41,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:41,331 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-11-16 12:21:41,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 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) [2022-11-16 12:21:41,332 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-11-16 12:21:41,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 12:21:41,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:41,337 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:41,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 12:21:41,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:21:41,545 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:21:41,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:41,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1267903976, now seen corresponding path program 2 times [2022-11-16 12:21:41,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:41,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102907108] [2022-11-16 12:21:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:41,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:41,565 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:21:41,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1983196389] [2022-11-16 12:21:41,575 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:21:41,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:21:41,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:21:41,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:21:41,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:21:41,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:21:41,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:41,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:21:41,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:41,838 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:41,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:21:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:41,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:41,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102907108] [2022-11-16 12:21:41,954 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:21:41,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983196389] [2022-11-16 12:21:41,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983196389] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:21:41,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:21:41,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-16 12:21:41,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585587471] [2022-11-16 12:21:41,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:21:41,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:21:41,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:41,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:21:41,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:21:41,958 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 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) [2022-11-16 12:21:42,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:42,283 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2022-11-16 12:21:42,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:21:42,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 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 18 [2022-11-16 12:21:42,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:42,285 INFO L225 Difference]: With dead ends: 61 [2022-11-16 12:21:42,285 INFO L226 Difference]: Without dead ends: 42 [2022-11-16 12:21:42,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:21:42,287 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 55 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:42,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 39 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:21:42,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-16 12:21:42,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 26. [2022-11-16 12:21:42,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 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) [2022-11-16 12:21:42,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-16 12:21:42,297 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 18 [2022-11-16 12:21:42,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:42,297 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-16 12:21:42,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 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) [2022-11-16 12:21:42,298 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-16 12:21:42,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 12:21:42,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:42,298 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:42,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:42,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-16 12:21:42,505 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:21:42,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:42,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1174519208, now seen corresponding path program 3 times [2022-11-16 12:21:42,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:42,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308979381] [2022-11-16 12:21:42,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:42,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:42,539 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:21:42,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [436329887] [2022-11-16 12:21:42,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:21:42,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:21:42,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:21:42,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:21:42,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:21:42,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:21:42,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:42,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-16 12:21:42,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:42,926 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-16 12:21:42,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 83 [2022-11-16 12:21:43,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2022-11-16 12:21:43,705 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 12:21:43,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:21:44,053 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:21:44,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 187 treesize of output 165 [2022-11-16 12:21:44,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2022-11-16 12:21:44,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-11-16 12:21:44,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-11-16 12:21:44,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2022-11-16 12:21:44,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2022-11-16 12:21:44,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-11-16 12:21:44,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2022-11-16 12:21:44,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-11-16 12:21:44,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2022-11-16 12:21:44,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-11-16 12:21:44,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2022-11-16 12:21:44,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-11-16 12:21:45,427 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 12:21:45,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:45,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308979381] [2022-11-16 12:21:45,428 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:21:45,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436329887] [2022-11-16 12:21:45,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436329887] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:21:45,429 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:21:45,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2022-11-16 12:21:45,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109035784] [2022-11-16 12:21:45,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:21:45,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 12:21:45,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:45,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 12:21:45,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:21:45,431 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 17 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 17 states have internal predecessors, (29), 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) [2022-11-16 12:21:45,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:45,622 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-11-16 12:21:45,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:21:45,623 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 17 states have internal predecessors, (29), 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 18 [2022-11-16 12:21:45,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:45,624 INFO L225 Difference]: With dead ends: 30 [2022-11-16 12:21:45,624 INFO L226 Difference]: Without dead ends: 25 [2022-11-16 12:21:45,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:21:45,625 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:45,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 50 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 30 Unchecked, 0.1s Time] [2022-11-16 12:21:45,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-16 12:21:45,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2022-11-16 12:21:45,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 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) [2022-11-16 12:21:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-16 12:21:45,632 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 18 [2022-11-16 12:21:45,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:45,632 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-16 12:21:45,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 17 states have internal predecessors, (29), 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) [2022-11-16 12:21:45,633 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-16 12:21:45,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 12:21:45,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:45,633 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:45,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:45,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:21:45,834 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:21:45,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:45,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1786143722, now seen corresponding path program 4 times [2022-11-16 12:21:45,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:45,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955834303] [2022-11-16 12:21:45,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:45,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:45,851 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:21:45,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679445170] [2022-11-16 12:21:45,851 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:21:45,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:21:45,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:21:45,859 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:21:45,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:21:45,942 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:21:45,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:45,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-16 12:21:45,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:45,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:21:46,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-16 12:21:46,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-16 12:21:46,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:21:46,640 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-16 12:21:46,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2022-11-16 12:21:46,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:21:46,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-11-16 12:21:47,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2022-11-16 12:21:47,213 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:47,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:21:57,896 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:21:57,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 1 [2022-11-16 12:21:57,900 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:57,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:57,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955834303] [2022-11-16 12:21:57,900 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:21:57,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679445170] [2022-11-16 12:21:57,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679445170] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:21:57,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:21:57,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2022-11-16 12:21:57,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446293749] [2022-11-16 12:21:57,901 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:21:57,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-16 12:21:57,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:57,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-16 12:21:57,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=583, Unknown=2, NotChecked=0, Total=702 [2022-11-16 12:21:57,903 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 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) [2022-11-16 12:22:00,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:00,569 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2022-11-16 12:22:00,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-16 12:22:00,570 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 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 [2022-11-16 12:22:00,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:00,570 INFO L225 Difference]: With dead ends: 51 [2022-11-16 12:22:00,570 INFO L226 Difference]: Without dead ends: 49 [2022-11-16 12:22:00,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=138, Invalid=729, Unknown=3, NotChecked=0, Total=870 [2022-11-16 12:22:00,572 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 20 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 136 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:00,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 86 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 136 Unchecked, 0.3s Time] [2022-11-16 12:22:00,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-16 12:22:00,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2022-11-16 12:22:00,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.170731707317073) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:00,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2022-11-16 12:22:00,581 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 20 [2022-11-16 12:22:00,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:00,582 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-11-16 12:22:00,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 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) [2022-11-16 12:22:00,582 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2022-11-16 12:22:00,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:22:00,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:00,583 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:00,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-16 12:22:00,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:22:00,789 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:00,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:00,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1232945932, now seen corresponding path program 1 times [2022-11-16 12:22:00,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:00,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174529779] [2022-11-16 12:22:00,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:00,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:00,810 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:22:00,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2076282031] [2022-11-16 12:22:00,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:00,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:22:00,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:22:00,814 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:22:00,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:22:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:00,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-16 12:22:00,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:22:00,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 12:22:00,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:22:01,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:22:01,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:22:01,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 42 [2022-11-16 12:22:01,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:22:01,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 52 [2022-11-16 12:22:09,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 33 [2022-11-16 12:22:09,942 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:09,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:22:33,671 WARN L233 SmtUtils]: Spent 18.59s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:22:46,108 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:46,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:46,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174529779] [2022-11-16 12:22:46,109 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:22:46,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076282031] [2022-11-16 12:22:46,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076282031] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:22:46,109 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:22:46,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2022-11-16 12:22:46,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482096936] [2022-11-16 12:22:46,110 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:22:46,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 12:22:46,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:46,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 12:22:46,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=534, Unknown=4, NotChecked=0, Total=650 [2022-11-16 12:22:46,112 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 26 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 26 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) [2022-11-16 12:22:52,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:52,462 INFO L93 Difference]: Finished difference Result 80 states and 92 transitions. [2022-11-16 12:22:52,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 12:22:52,463 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 26 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 24 [2022-11-16 12:22:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:52,463 INFO L225 Difference]: With dead ends: 80 [2022-11-16 12:22:52,464 INFO L226 Difference]: Without dead ends: 78 [2022-11-16 12:22:52,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 48.0s TimeCoverageRelationStatistics Valid=132, Invalid=676, Unknown=4, NotChecked=0, Total=812 [2022-11-16 12:22:52,465 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 36 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 74 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:52,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 114 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 74 Unchecked, 0.5s Time] [2022-11-16 12:22:52,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-16 12:22:52,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 58. [2022-11-16 12:22:52,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 57 states have internal predecessors, (69), 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) [2022-11-16 12:22:52,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2022-11-16 12:22:52,481 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 24 [2022-11-16 12:22:52,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:52,481 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2022-11-16 12:22:52,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 26 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) [2022-11-16 12:22:52,481 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2022-11-16 12:22:52,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:22:52,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:52,482 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:52,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:22:52,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:22:52,688 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:22:52,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:52,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1049585326, now seen corresponding path program 5 times [2022-11-16 12:22:52,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:52,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560902412] [2022-11-16 12:22:52,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:52,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:52,705 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:22:52,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [518859388] [2022-11-16 12:22:52,714 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:22:52,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:22:52,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:22:52,716 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:22:52,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:22:52,817 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-11-16 12:22:52,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:22:52,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-16 12:22:52,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:22:52,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:22:52,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 12:22:52,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-16 12:22:53,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-16 12:22:53,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-16 12:22:53,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2022-11-16 12:22:53,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:22:53,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2022-11-16 12:22:54,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:22:54,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:22:54,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:22:54,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2022-11-16 12:22:54,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2022-11-16 12:22:54,705 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:54,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:22:59,190 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:59,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:59,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560902412] [2022-11-16 12:22:59,191 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:22:59,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518859388] [2022-11-16 12:22:59,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518859388] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:22:59,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:22:59,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2022-11-16 12:22:59,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910403135] [2022-11-16 12:22:59,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:22:59,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-16 12:22:59,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:59,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-16 12:22:59,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=961, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 12:22:59,194 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand has 34 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 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) [2022-11-16 12:23:02,877 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse2 (< 3 c_~N~0))) (and (or (not .cse0) (= (mod (+ .cse1 1) c_~N~0) 0) .cse2) (not (<= c_~N~0 0)) (or (= (mod .cse1 c_~N~0) 0) .cse2) (or .cse0 (= 0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= (mod (+ .cse1 2) c_~N~0) 0) (< c_~N~0 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) .cse2) (or (< c_~N~0 (+ 3 |c_ULTIMATE.start_main_~i~0#1|)) (= (mod (+ .cse1 3) c_~N~0) 0) .cse2))) is different from true [2022-11-16 12:23:10,967 WARN L233 SmtUtils]: Spent 7.92s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:23:34,285 WARN L233 SmtUtils]: Spent 23.18s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:23:36,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 12:23:38,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 12:23:46,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 12:23:48,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 12:24:02,301 WARN L233 SmtUtils]: Spent 7.92s on a formula simplification. DAG size of input: 33 DAG size of output: 27 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:24:04,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 12:24:29,806 WARN L233 SmtUtils]: Spent 8.44s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:24:31,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 12:24:33,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:33,316 INFO L93 Difference]: Finished difference Result 142 states and 162 transitions. [2022-11-16 12:24:33,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-16 12:24:33,317 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 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 24 [2022-11-16 12:24:33,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:33,318 INFO L225 Difference]: With dead ends: 142 [2022-11-16 12:24:33,319 INFO L226 Difference]: Without dead ends: 129 [2022-11-16 12:24:33,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 83.6s TimeCoverageRelationStatistics Valid=593, Invalid=3697, Unknown=4, NotChecked=128, Total=4422 [2022-11-16 12:24:33,322 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 164 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 115 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 336 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:33,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 385 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 465 Invalid, 5 Unknown, 336 Unchecked, 15.3s Time] [2022-11-16 12:24:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-16 12:24:33,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 72. [2022-11-16 12:24:33,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 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) [2022-11-16 12:24:33,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 87 transitions. [2022-11-16 12:24:33,368 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 87 transitions. Word has length 24 [2022-11-16 12:24:33,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:33,371 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 87 transitions. [2022-11-16 12:24:33,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 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) [2022-11-16 12:24:33,371 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions. [2022-11-16 12:24:33,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 12:24:33,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:33,374 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:33,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-16 12:24:33,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:24:33,577 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:24:33,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:33,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1983767408, now seen corresponding path program 6 times [2022-11-16 12:24:33,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:24:33,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594208651] [2022-11-16 12:24:33,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:24:33,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:24:33,596 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:24:33,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570817235] [2022-11-16 12:24:33,597 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:24:33,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:24:33,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:24:33,598 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:24:33,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 12:24:33,728 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-16 12:24:33,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:24:33,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:24:33,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:24:34,013 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:24:34,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:24:34,291 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:24:34,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:24:34,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594208651] [2022-11-16 12:24:34,292 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:24:34,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570817235] [2022-11-16 12:24:34,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570817235] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:24:34,292 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:24:34,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-11-16 12:24:34,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712588618] [2022-11-16 12:24:34,293 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:24:34,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:24:34,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:24:34,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:24:34,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:24:34,294 INFO L87 Difference]: Start difference. First operand 72 states and 87 transitions. Second operand has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 15 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) [2022-11-16 12:24:35,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:35,048 INFO L93 Difference]: Finished difference Result 143 states and 159 transitions. [2022-11-16 12:24:35,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:24:35,049 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 15 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 26 [2022-11-16 12:24:35,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:35,049 INFO L225 Difference]: With dead ends: 143 [2022-11-16 12:24:35,050 INFO L226 Difference]: Without dead ends: 102 [2022-11-16 12:24:35,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 32 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:24:35,051 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 216 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:35,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 84 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:24:35,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-16 12:24:35,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 68. [2022-11-16 12:24:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.164179104477612) internal successors, (78), 67 states have internal predecessors, (78), 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) [2022-11-16 12:24:35,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2022-11-16 12:24:35,071 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 26 [2022-11-16 12:24:35,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:35,071 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2022-11-16 12:24:35,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 15 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) [2022-11-16 12:24:35,072 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2022-11-16 12:24:35,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 12:24:35,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:35,073 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:35,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-16 12:24:35,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:24:35,279 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:24:35,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:35,279 INFO L85 PathProgramCache]: Analyzing trace with hash 778799246, now seen corresponding path program 7 times [2022-11-16 12:24:35,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:24:35,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154388635] [2022-11-16 12:24:35,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:24:35,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:24:35,296 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:24:35,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [753864346] [2022-11-16 12:24:35,296 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:24:35,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:24:35,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:24:35,298 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:24:35,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 12:24:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:35,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-16 12:24:35,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:24:35,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 12:24:35,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:24:35,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-16 12:24:35,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-16 12:24:35,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-16 12:24:35,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-16 12:24:36,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2022-11-16 12:24:36,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:24:36,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 12:24:36,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:24:36,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 12:24:37,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:24:37,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 12:24:37,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2022-11-16 12:24:37,568 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:24:37,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:24:46,562 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:24:46,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 1 [2022-11-16 12:24:46,566 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 26 refuted. 1 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 12:24:46,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:24:46,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154388635] [2022-11-16 12:24:46,567 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:24:46,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753864346] [2022-11-16 12:24:46,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753864346] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:24:46,567 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:24:46,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2022-11-16 12:24:46,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27244249] [2022-11-16 12:24:46,568 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:24:46,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-16 12:24:46,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:24:46,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-16 12:24:46,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1217, Unknown=2, NotChecked=0, Total=1406 [2022-11-16 12:24:46,570 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand has 38 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 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) [2022-11-16 12:24:51,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:51,777 INFO L93 Difference]: Finished difference Result 124 states and 141 transitions. [2022-11-16 12:24:51,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-16 12:24:51,778 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 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 28 [2022-11-16 12:24:51,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:51,779 INFO L225 Difference]: With dead ends: 124 [2022-11-16 12:24:51,779 INFO L226 Difference]: Without dead ends: 119 [2022-11-16 12:24:51,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 15 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=291, Invalid=2157, Unknown=2, NotChecked=0, Total=2450 [2022-11-16 12:24:51,781 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 36 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 259 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:51,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 122 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 259 Unchecked, 0.2s Time] [2022-11-16 12:24:51,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-16 12:24:51,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 75. [2022-11-16 12:24:51,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.1756756756756757) internal successors, (87), 74 states have internal predecessors, (87), 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) [2022-11-16 12:24:51,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2022-11-16 12:24:51,818 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 28 [2022-11-16 12:24:51,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:51,819 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2022-11-16 12:24:51,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 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) [2022-11-16 12:24:51,819 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2022-11-16 12:24:51,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 12:24:51,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:51,820 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:51,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:24:52,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:24:52,028 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:24:52,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:52,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1146912830, now seen corresponding path program 2 times [2022-11-16 12:24:52,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:24:52,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433458954] [2022-11-16 12:24:52,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:24:52,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:24:52,042 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:24:52,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537491396] [2022-11-16 12:24:52,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:24:52,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:24:52,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:24:52,044 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:24:52,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 12:24:52,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:24:52,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:24:52,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-16 12:24:52,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:24:52,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:24:52,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:24:52,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:24:52,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:24:52,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:24:52,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 40 [2022-11-16 12:24:52,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:24:52,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 42 [2022-11-16 12:24:52,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:24:52,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 54 [2022-11-16 12:25:08,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:25:08,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 33 [2022-11-16 12:25:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:08,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:25:13,596 WARN L833 $PredicateComparison]: unable to prove that (forall ((~N~0 Int) (v_ArrVal_386 (Array Int Int))) (let ((.cse0 (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (store v_ArrVal_386 (+ .cse2 |c_ULTIMATE.start_main_~a~0#1.offset| 4) (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_386) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) ~N~0)))) (store .cse1 (+ .cse2 8 |c_ULTIMATE.start_main_~a~0#1.offset|) (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) ~N~0)))))) (or (= (select .cse0 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 0) (not (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 0))))) is different from false [2022-11-16 12:25:20,868 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 14 refuted. 4 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-16 12:25:20,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:20,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433458954] [2022-11-16 12:25:20,868 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:25:20,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537491396] [2022-11-16 12:25:20,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537491396] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:25:20,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:25:20,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 33 [2022-11-16 12:25:20,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848108914] [2022-11-16 12:25:20,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:25:20,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-16 12:25:20,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:20,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-16 12:25:20,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=828, Unknown=9, NotChecked=60, Total=1056 [2022-11-16 12:25:20,871 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 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) [2022-11-16 12:25:28,486 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 64 DAG size of output: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:25:36,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:36,521 INFO L93 Difference]: Finished difference Result 106 states and 122 transitions. [2022-11-16 12:25:36,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 12:25:36,522 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 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 32 [2022-11-16 12:25:36,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:36,524 INFO L225 Difference]: With dead ends: 106 [2022-11-16 12:25:36,524 INFO L226 Difference]: Without dead ends: 85 [2022-11-16 12:25:36,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 38.8s TimeCoverageRelationStatistics Valid=223, Invalid=1254, Unknown=9, NotChecked=74, Total=1560 [2022-11-16 12:25:36,526 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 39 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 83 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:36,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 177 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 218 Invalid, 0 Unknown, 83 Unchecked, 0.9s Time] [2022-11-16 12:25:36,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-16 12:25:36,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 75. [2022-11-16 12:25:36,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.2162162162162162) internal successors, (90), 74 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:36,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2022-11-16 12:25:36,565 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 32 [2022-11-16 12:25:36,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:36,565 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2022-11-16 12:25:36,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 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) [2022-11-16 12:25:36,566 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2022-11-16 12:25:36,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 12:25:36,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:36,567 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:36,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:36,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:25:36,774 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:25:36,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:36,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1910230140, now seen corresponding path program 3 times [2022-11-16 12:25:36,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:36,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19710323] [2022-11-16 12:25:36,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:36,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:36,799 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:25:36,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068369475] [2022-11-16 12:25:36,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:25:36,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:25:36,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:25:36,802 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:25:36,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 12:25:36,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-16 12:25:36,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:36,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-16 12:25:36,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:36,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:25:37,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:25:37,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:25:37,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:25:37,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:25:37,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:25:37,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 42 [2022-11-16 12:25:37,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:25:37,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 59 [2022-11-16 12:25:42,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:25:42,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:25:42,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:25:42,668 INFO L321 Elim1Store]: treesize reduction 104, result has 27.3 percent of original size [2022-11-16 12:25:42,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 106 treesize of output 112 [2022-11-16 12:25:45,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:25:45,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:25:45,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:25:45,953 INFO L321 Elim1Store]: treesize reduction 104, result has 27.3 percent of original size [2022-11-16 12:25:45,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 106 treesize of output 112 [2022-11-16 12:25:54,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:25:54,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 33 [2022-11-16 12:25:54,609 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:54,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:07,222 WARN L233 SmtUtils]: Spent 9.88s on a formula simplification. DAG size of input: 81 DAG size of output: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:26:57,101 WARN L233 SmtUtils]: Spent 32.83s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:27:07,920 WARN L233 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:27:30,857 WARN L233 SmtUtils]: Spent 7.53s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:28:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 24 refuted. 10 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:08,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:08,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19710323] [2022-11-16 12:28:08,456 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:28:08,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068369475] [2022-11-16 12:28:08,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068369475] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:28:08,456 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:28:08,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 37 [2022-11-16 12:28:08,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579529304] [2022-11-16 12:28:08,457 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:28:08,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-16 12:28:08,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:08,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-16 12:28:08,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1108, Unknown=22, NotChecked=0, Total=1332 [2022-11-16 12:28:08,459 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand has 37 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 37 states have internal predecessors, (59), 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) [2022-11-16 12:28:11,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:11,482 INFO L93 Difference]: Finished difference Result 88 states and 104 transitions. [2022-11-16 12:28:11,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:28:11,482 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 37 states have internal predecessors, (59), 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 32 [2022-11-16 12:28:11,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:11,483 INFO L225 Difference]: With dead ends: 88 [2022-11-16 12:28:11,483 INFO L226 Difference]: Without dead ends: 86 [2022-11-16 12:28:11,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 145.5s TimeCoverageRelationStatistics Valid=222, Invalid=1162, Unknown=22, NotChecked=0, Total=1406 [2022-11-16 12:28:11,485 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 23 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 212 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:11,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 160 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 115 Invalid, 0 Unknown, 212 Unchecked, 0.4s Time] [2022-11-16 12:28:11,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-16 12:28:11,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 77. [2022-11-16 12:28:11,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 76 states have internal predecessors, (92), 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) [2022-11-16 12:28:11,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2022-11-16 12:28:11,513 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 32 [2022-11-16 12:28:11,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:11,513 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2022-11-16 12:28:11,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 37 states have internal predecessors, (59), 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) [2022-11-16 12:28:11,514 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2022-11-16 12:28:11,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 12:28:11,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:11,515 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:11,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-11-16 12:28:11,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:28:11,722 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:28:11,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:11,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1150671498, now seen corresponding path program 8 times [2022-11-16 12:28:11,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:11,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987642259] [2022-11-16 12:28:11,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:11,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:11,742 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:28:11,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [698234019] [2022-11-16 12:28:11,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:28:11,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:28:11,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:28:11,744 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:28:11,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 12:28:11,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:28:11,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:11,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:28:11,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:12,112 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:28:12,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:12,305 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 12:28:12,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:12,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987642259] [2022-11-16 12:28:12,306 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:28:12,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698234019] [2022-11-16 12:28:12,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698234019] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:28:12,307 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:28:12,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-16 12:28:12,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978166907] [2022-11-16 12:28:12,308 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:28:12,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:28:12,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:12,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:28:12,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:28:12,309 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 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) [2022-11-16 12:28:12,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:12,812 INFO L93 Difference]: Finished difference Result 98 states and 111 transitions. [2022-11-16 12:28:12,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:28:12,812 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 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 32 [2022-11-16 12:28:12,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:12,813 INFO L225 Difference]: With dead ends: 98 [2022-11-16 12:28:12,813 INFO L226 Difference]: Without dead ends: 93 [2022-11-16 12:28:12,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:28:12,814 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 78 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:12,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 61 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:28:12,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-16 12:28:12,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2022-11-16 12:28:12,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.1973684210526316) 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) [2022-11-16 12:28:12,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2022-11-16 12:28:12,860 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 32 [2022-11-16 12:28:12,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:12,861 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2022-11-16 12:28:12,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 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) [2022-11-16 12:28:12,862 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2022-11-16 12:28:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 12:28:12,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:12,865 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:12,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:13,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 12:28:13,073 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:28:13,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:13,073 INFO L85 PathProgramCache]: Analyzing trace with hash -660869176, now seen corresponding path program 9 times [2022-11-16 12:28:13,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:13,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327729868] [2022-11-16 12:28:13,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:13,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:13,110 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:28:13,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508080994] [2022-11-16 12:28:13,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:28:13,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:28:13,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:28:13,121 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:28:13,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 12:28:13,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-16 12:28:13,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:13,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:13,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:13,694 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 9 proven. 44 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 12:28:13,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 9 proven. 44 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-16 12:28:13,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:13,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327729868] [2022-11-16 12:28:13,943 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:28:13,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508080994] [2022-11-16 12:28:13,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508080994] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:28:13,943 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:28:13,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-11-16 12:28:13,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711749302] [2022-11-16 12:28:13,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:28:13,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:28:13,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:13,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:28:13,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:28:13,945 INFO L87 Difference]: Start difference. First operand 77 states and 91 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 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) [2022-11-16 12:28:14,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:14,644 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2022-11-16 12:28:14,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:28:14,644 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 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 34 [2022-11-16 12:28:14,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:14,645 INFO L225 Difference]: With dead ends: 101 [2022-11-16 12:28:14,646 INFO L226 Difference]: Without dead ends: 96 [2022-11-16 12:28:14,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 48 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:28:14,647 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 158 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:14,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 68 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:28:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-16 12:28:14,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 74. [2022-11-16 12:28:14,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.1917808219178083) internal successors, (87), 73 states have internal predecessors, (87), 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) [2022-11-16 12:28:14,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2022-11-16 12:28:14,679 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 87 transitions. Word has length 34 [2022-11-16 12:28:14,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:14,679 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 87 transitions. [2022-11-16 12:28:14,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 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) [2022-11-16 12:28:14,680 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 87 transitions. [2022-11-16 12:28:14,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-16 12:28:14,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:14,681 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:14,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:14,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 12:28:14,884 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:28:14,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:14,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2089702010, now seen corresponding path program 10 times [2022-11-16 12:28:14,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:14,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435610607] [2022-11-16 12:28:14,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:14,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:14,909 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:28:14,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [194483429] [2022-11-16 12:28:14,910 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:28:14,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:28:14,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:28:14,912 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:28:14,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-16 12:28:15,093 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:28:15,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:15,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-16 12:28:15,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:15,618 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 49 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:15,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 49 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:16,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:16,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435610607] [2022-11-16 12:28:16,058 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:28:16,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194483429] [2022-11-16 12:28:16,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194483429] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:28:16,058 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:28:16,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 25 [2022-11-16 12:28:16,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381240543] [2022-11-16 12:28:16,059 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:28:16,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 12:28:16,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:16,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 12:28:16,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:28:16,061 INFO L87 Difference]: Start difference. First operand 74 states and 87 transitions. Second operand has 25 states, 25 states have (on average 2.24) internal successors, (56), 25 states have internal predecessors, (56), 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) [2022-11-16 12:28:18,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:18,670 INFO L93 Difference]: Finished difference Result 216 states and 234 transitions. [2022-11-16 12:28:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 12:28:18,670 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 25 states have internal predecessors, (56), 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 [2022-11-16 12:28:18,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:18,671 INFO L225 Difference]: With dead ends: 216 [2022-11-16 12:28:18,672 INFO L226 Difference]: Without dead ends: 193 [2022-11-16 12:28:18,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 42 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=567, Invalid=1689, Unknown=0, NotChecked=0, Total=2256 [2022-11-16 12:28:18,674 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 225 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:18,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 363 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:28:18,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-11-16 12:28:18,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 85. [2022-11-16 12:28:18,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.130952380952381) internal successors, (95), 84 states have internal predecessors, (95), 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) [2022-11-16 12:28:18,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2022-11-16 12:28:18,703 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 36 [2022-11-16 12:28:18,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:18,703 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2022-11-16 12:28:18,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 25 states have internal predecessors, (56), 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) [2022-11-16 12:28:18,704 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2022-11-16 12:28:18,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-16 12:28:18,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:18,705 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:18,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:18,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 12:28:18,908 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:28:18,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:18,909 INFO L85 PathProgramCache]: Analyzing trace with hash -835467152, now seen corresponding path program 4 times [2022-11-16 12:28:18,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:18,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778127495] [2022-11-16 12:28:18,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:18,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:18,926 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:28:18,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1926900535] [2022-11-16 12:28:18,927 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:28:18,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:28:18,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:28:18,928 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:28:18,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-16 12:28:19,052 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:28:19,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:19,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-16 12:28:19,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:19,242 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-16 12:28:19,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 109 [2022-11-16 12:28:22,249 INFO L321 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2022-11-16 12:28:22,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 208 treesize of output 152 [2022-11-16 12:28:29,777 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:29,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 30 [2022-11-16 12:28:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 12:28:29,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:35,043 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:35,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 338 treesize of output 306 [2022-11-16 12:28:37,709 INFO L321 Elim1Store]: treesize reduction 11, result has 47.6 percent of original size [2022-11-16 12:28:37,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 254 treesize of output 223 [2022-11-16 12:28:38,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 57 [2022-11-16 12:28:38,474 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:38,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 132 treesize of output 124 [2022-11-16 12:28:38,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 57 [2022-11-16 12:28:38,755 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:38,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 132 treesize of output 124 [2022-11-16 12:28:39,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:28:39,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:28:39,002 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:28:39,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:28:39,059 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:39,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 34 [2022-11-16 12:28:39,172 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:39,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 152 treesize of output 150 [2022-11-16 12:28:39,336 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-16 12:28:39,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 257 treesize of output 216 [2022-11-16 12:28:39,627 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:39,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 216 [2022-11-16 12:28:39,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:28:39,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:28:39,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:28:39,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:28:39,926 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:39,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 319 treesize of output 428 [2022-11-16 12:28:44,004 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-16 12:28:44,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 254 treesize of output 213 [2022-11-16 12:28:44,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 71 [2022-11-16 12:28:44,302 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:44,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 292 treesize of output 276 [2022-11-16 12:28:44,824 INFO L321 Elim1Store]: treesize reduction 17, result has 19.0 percent of original size [2022-11-16 12:28:44,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 187 treesize of output 161 [2022-11-16 12:28:45,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 71 [2022-11-16 12:28:45,555 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:45,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 210 treesize of output 198 [2022-11-16 12:28:45,953 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:45,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 150 [2022-11-16 12:28:46,154 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:46,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 152 treesize of output 150 [2022-11-16 12:28:46,278 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-16 12:28:46,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 257 treesize of output 216 [2022-11-16 12:28:46,631 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:46,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 216 [2022-11-16 12:28:46,997 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:28:46,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 532 treesize of output 634 [2022-11-16 12:28:53,043 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 12:28:53,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:53,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778127495] [2022-11-16 12:28:53,044 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:28:53,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926900535] [2022-11-16 12:28:53,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926900535] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:28:53,044 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:28:53,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2022-11-16 12:28:53,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704079929] [2022-11-16 12:28:53,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:28:53,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 12:28:53,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:53,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 12:28:53,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=511, Unknown=1, NotChecked=0, Total=600 [2022-11-16 12:28:53,046 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand has 25 states, 25 states have (on average 2.16) internal successors, (54), 25 states have internal predecessors, (54), 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) [2022-11-16 12:28:54,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:54,798 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2022-11-16 12:28:54,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:28:54,799 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.16) internal successors, (54), 25 states have internal predecessors, (54), 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 40 [2022-11-16 12:28:54,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:54,800 INFO L225 Difference]: With dead ends: 104 [2022-11-16 12:28:54,800 INFO L226 Difference]: Without dead ends: 102 [2022-11-16 12:28:54,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=108, Invalid=593, Unknown=1, NotChecked=0, Total=702 [2022-11-16 12:28:54,801 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 35 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:54,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 150 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 211 Invalid, 0 Unknown, 78 Unchecked, 0.9s Time] [2022-11-16 12:28:54,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-16 12:28:54,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 90. [2022-11-16 12:28:54,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.1235955056179776) internal successors, (100), 89 states have internal predecessors, (100), 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) [2022-11-16 12:28:54,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 100 transitions. [2022-11-16 12:28:54,837 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 100 transitions. Word has length 40 [2022-11-16 12:28:54,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:54,837 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 100 transitions. [2022-11-16 12:28:54,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.16) internal successors, (54), 25 states have internal predecessors, (54), 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) [2022-11-16 12:28:54,838 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2022-11-16 12:28:54,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-16 12:28:54,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:54,839 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:54,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:55,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-16 12:28:55,046 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:28:55,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:55,046 INFO L85 PathProgramCache]: Analyzing trace with hash -2034440074, now seen corresponding path program 5 times [2022-11-16 12:28:55,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:55,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76104114] [2022-11-16 12:28:55,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:55,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:55,063 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:28:55,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [78896608] [2022-11-16 12:28:55,063 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:28:55,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:28:55,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:28:55,065 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:28:55,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-16 12:28:55,241 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-11-16 12:28:55,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:55,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:28:55,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:55,670 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 36 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 12:28:55,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:56,079 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 36 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 12:28:56,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:56,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76104114] [2022-11-16 12:28:56,080 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:28:56,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78896608] [2022-11-16 12:28:56,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78896608] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:28:56,080 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:28:56,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2022-11-16 12:28:56,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585615331] [2022-11-16 12:28:56,081 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:28:56,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:28:56,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:56,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:28:56,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:28:56,083 INFO L87 Difference]: Start difference. First operand 90 states and 100 transitions. Second operand has 22 states, 22 states have (on average 2.3181818181818183) internal successors, (51), 22 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) [2022-11-16 12:28:57,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:57,373 INFO L93 Difference]: Finished difference Result 187 states and 199 transitions. [2022-11-16 12:28:57,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 12:28:57,374 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.3181818181818183) internal successors, (51), 22 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) Word has length 40 [2022-11-16 12:28:57,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:57,375 INFO L225 Difference]: With dead ends: 187 [2022-11-16 12:28:57,375 INFO L226 Difference]: Without dead ends: 134 [2022-11-16 12:28:57,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 54 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 12:28:57,377 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 244 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:57,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 157 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:28:57,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-16 12:28:57,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 101. [2022-11-16 12:28:57,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.1) internal successors, (110), 100 states have internal predecessors, (110), 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) [2022-11-16 12:28:57,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 110 transitions. [2022-11-16 12:28:57,418 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 110 transitions. Word has length 40 [2022-11-16 12:28:57,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:57,419 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 110 transitions. [2022-11-16 12:28:57,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.3181818181818183) internal successors, (51), 22 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) [2022-11-16 12:28:57,419 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 110 transitions. [2022-11-16 12:28:57,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-16 12:28:57,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:57,420 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:57,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:57,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-16 12:28:57,621 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:28:57,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:57,621 INFO L85 PathProgramCache]: Analyzing trace with hash -949375060, now seen corresponding path program 6 times [2022-11-16 12:28:57,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:57,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772364109] [2022-11-16 12:28:57,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:57,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:57,645 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:28:57,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1551193152] [2022-11-16 12:28:57,646 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:28:57,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:28:57,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:28:57,648 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:28:57,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-16 12:28:57,842 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2022-11-16 12:28:57,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:57,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-16 12:28:57,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:57,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:28:57,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-16 12:28:58,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:28:58,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:28:58,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:28:58,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:28:58,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:28:58,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2022-11-16 12:28:59,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:28:59,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:28:59,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-11-16 12:28:59,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:28:59,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:28:59,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-11-16 12:28:59,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:28:59,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:28:59,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2022-11-16 12:29:00,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:29:00,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:29:00,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:29:00,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:29:00,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 48 [2022-11-16 12:29:04,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:29:04,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 33 [2022-11-16 12:29:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 12 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:04,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:30,907 WARN L233 SmtUtils]: Spent 7.70s on a formula simplification. DAG size of input: 98 DAG size of output: 46 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:29:57,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 12:29:57,879 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:29:57,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 1 [2022-11-16 12:29:57,881 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 52 refuted. 16 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:57,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:57,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772364109] [2022-11-16 12:29:57,882 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 12:29:57,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551193152] [2022-11-16 12:29:57,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551193152] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:29:57,882 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:29:57,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 25] total 47 [2022-11-16 12:29:57,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594289917] [2022-11-16 12:29:57,883 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:29:57,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-16 12:29:57,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:57,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-16 12:29:57,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1889, Unknown=13, NotChecked=0, Total=2162 [2022-11-16 12:29:57,885 INFO L87 Difference]: Start difference. First operand 101 states and 110 transitions. Second operand has 47 states, 47 states have (on average 1.8085106382978724) internal successors, (85), 47 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) [2022-11-16 12:30:24,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:24,323 INFO L93 Difference]: Finished difference Result 138 states and 154 transitions. [2022-11-16 12:30:24,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-16 12:30:24,323 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 1.8085106382978724) internal successors, (85), 47 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 44 [2022-11-16 12:30:24,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:24,324 INFO L225 Difference]: With dead ends: 138 [2022-11-16 12:30:24,324 INFO L226 Difference]: Without dead ends: 136 [2022-11-16 12:30:24,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1047 ImplicationChecksByTransitivity, 79.8s TimeCoverageRelationStatistics Valid=362, Invalid=2703, Unknown=15, NotChecked=0, Total=3080 [2022-11-16 12:30:24,326 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 44 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 186 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:24,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 302 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 258 Invalid, 0 Unknown, 186 Unchecked, 0.8s Time] [2022-11-16 12:30:24,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-16 12:30:24,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 125. [2022-11-16 12:30:24,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.1290322580645162) internal successors, (140), 124 states have internal predecessors, (140), 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) [2022-11-16 12:30:24,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 140 transitions. [2022-11-16 12:30:24,371 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 140 transitions. Word has length 44 [2022-11-16 12:30:24,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:24,371 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 140 transitions. [2022-11-16 12:30:24,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 1.8085106382978724) internal successors, (85), 47 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) [2022-11-16 12:30:24,371 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 140 transitions. [2022-11-16 12:30:24,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-16 12:30:24,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:24,372 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:24,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:24,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 12:30:24,573 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:30:24,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:24,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1740648434, now seen corresponding path program 7 times [2022-11-16 12:30:24,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:24,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007508568] [2022-11-16 12:30:24,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:24,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:24,588 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 12:30:24,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781652332] [2022-11-16 12:30:24,588 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:30:24,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:30:24,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:30:24,590 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:30:24,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39e4a60d-ab11-4462-8244-7f228b7cd9e5/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-16 12:30:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:24,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-16 12:30:24,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:24,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:30:24,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 12:30:24,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:30:24,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:30:24,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:30:24,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:30:25,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:30:25,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-16 12:30:25,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 42 [2022-11-16 12:30:25,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:30:25,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-11-16 12:30:25,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:30:25,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 54 [2022-11-16 12:30:30,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:30:30,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:30:30,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:30:30,553 INFO L321 Elim1Store]: treesize reduction 104, result has 27.3 percent of original size [2022-11-16 12:30:30,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 104 treesize of output 110 [2022-11-16 12:30:33,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:30:33,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:30:33,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:30:33,544 INFO L321 Elim1Store]: treesize reduction 104, result has 27.3 percent of original size [2022-11-16 12:30:33,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 104 treesize of output 110 [2022-11-16 12:30:36,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:30:36,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:30:36,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:30:36,791 INFO L321 Elim1Store]: treesize reduction 104, result has 27.3 percent of original size [2022-11-16 12:30:36,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 104 treesize of output 110 [2022-11-16 12:30:47,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 33 [2022-11-16 12:30:47,478 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 40 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:47,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:31:29,157 WARN L233 SmtUtils]: Spent 18.34s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:32:04,470 WARN L233 SmtUtils]: Spent 30.18s on a formula simplification. DAG size of input: 93 DAG size of output: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:32:43,540 WARN L233 SmtUtils]: Spent 10.75s on a formula simplification that was a NOOP. DAG size: 93 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:33:15,790 WARN L233 SmtUtils]: Spent 10.75s on a formula simplification that was a NOOP. DAG size: 93 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:33:42,230 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse80 (* |c_ULTIMATE.start_main_~i~0#1| 4)) (.cse8 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse10 (< .cse8 0)) (.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (+ .cse80 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse7 (+ .cse80 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse9 (+ .cse80 |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse3 (+ 3 |c_ULTIMATE.start_main_~i~0#1|))) (and (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse4 (store (store .cse6 .cse7 (mod .cse8 ~N~0)) .cse9 v_ArrVal_889))) (let ((.cse2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse0 (store (store (store (store .cse4 .cse5 (mod .cse2 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (= (select .cse0 .cse1) 0) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (< .cse2 0) (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (not (< ~N~0 0))))))) .cse10) (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (~N~0 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse11 (mod .cse8 ~N~0))) (let ((.cse15 (store (store .cse6 .cse7 .cse11) .cse9 v_ArrVal_889))) (let ((.cse14 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse15) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse13 (mod .cse14 ~N~0))) (let ((.cse12 (store (store (store (store .cse15 .cse5 (+ ~N~0 .cse13)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (not (= .cse11 0)) (not (= (select .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse13 0) (= (select .cse12 .cse1) 0) (< ~N~0 0) (not (< .cse14 0))))))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))))) (or (and (forall ((~N~0 Int)) (let ((.cse20 (mod .cse8 ~N~0))) (or (forall ((v_ArrVal_889 Int)) (let ((.cse19 (store (store .cse6 .cse7 (+ .cse20 ~N~0)) .cse9 v_ArrVal_889))) (let ((.cse17 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse19) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse16 (mod .cse17 ~N~0))) (or (= .cse16 0) (not (< .cse17 0)) (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_897 Int)) (let ((.cse18 (store (store (store (store .cse19 .cse5 (+ .cse16 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (not (= (select .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= (select .cse18 .cse1) 0))))))))) (= .cse20 0) (not (< ~N~0 0))))) (forall ((~N~0 Int)) (let ((.cse21 (mod .cse8 ~N~0))) (or (= .cse21 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse24 (store (store .cse6 .cse7 (+ .cse21 ~N~0)) .cse9 v_ArrVal_889))) (let ((.cse23 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse24) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse22 (store (store (store (store .cse24 .cse5 (mod .cse23 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (= (select .cse22 .cse1) 0) (not (= (select .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (< .cse23 0)))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))))) (not (< ~N~0 0))))) (forall ((~N~0 Int)) (let ((.cse25 (mod .cse8 ~N~0))) (or (= .cse25 0) (forall ((v_ArrVal_889 Int)) (let ((.cse27 (store (store .cse6 .cse7 (+ .cse25 (* (- 1) ~N~0))) .cse9 v_ArrVal_889))) (let ((.cse29 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse27) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse28 (mod .cse29 ~N~0))) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_897 Int)) (let ((.cse26 (store (store (store (store .cse27 .cse5 (+ .cse28 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (= (select .cse26 .cse1) 0) (not (= (select .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|))))) (= .cse28 0) (not (< .cse29 0))))))) (< ~N~0 0)))) (forall ((~N~0 Int)) (let ((.cse30 (mod .cse8 ~N~0))) (or (= .cse30 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse33 (store (store .cse6 .cse7 (+ .cse30 ~N~0)) .cse9 v_ArrVal_889))) (let ((.cse32 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse33) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) ~N~0))) (let ((.cse31 (store (store (store (store .cse33 .cse5 .cse32) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (= (select .cse31 .cse1) 0) (not (= (select .cse31 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (= .cse32 0))))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))) (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)))) (not (< ~N~0 0))))) (forall ((~N~0 Int)) (let ((.cse34 (mod .cse8 ~N~0))) (or (= .cse34 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse37 (store (store .cse6 .cse7 (+ .cse34 (* (- 1) ~N~0))) .cse9 v_ArrVal_889))) (let ((.cse36 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse37) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse35 (store (store (store (store .cse37 .cse5 (mod .cse36 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (= (select .cse35 .cse1) 0) (< .cse36 0) (not (= (select .cse35 |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))) (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)))) (< ~N~0 0)))) (forall ((~N~0 Int)) (let ((.cse38 (mod .cse8 ~N~0))) (or (= .cse38 0) (< ~N~0 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse41 (store (store .cse6 .cse7 (+ .cse38 (* (- 1) ~N~0))) .cse9 v_ArrVal_889))) (let ((.cse40 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse41) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) ~N~0))) (let ((.cse39 (store (store (store (store .cse41 .cse5 .cse40) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (= (select .cse39 .cse1) 0) (not (= (select .cse39 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (= .cse40 0))))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))) (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)))))))) (not .cse10)) (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (~N~0 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse43 (mod .cse8 ~N~0))) (let ((.cse45 (store (store .cse6 .cse7 .cse43) .cse9 v_ArrVal_889))) (let ((.cse44 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse45) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) ~N~0))) (let ((.cse42 (store (store (store (store .cse45 .cse5 .cse44) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (= (select .cse42 .cse1) 0) (not (= .cse43 0)) (not (= .cse44 0)) (not (= (select .cse42 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (< ~N~0 0)))))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))))) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse49 (store (store .cse6 .cse7 (mod .cse8 ~N~0)) .cse9 v_ArrVal_889))) (let ((.cse48 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse49) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse47 (mod .cse48 ~N~0))) (let ((.cse46 (store (store (store (store .cse49 .cse5 (+ ~N~0 .cse47)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (= (select .cse46 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (= .cse47 0) (= (select .cse46 .cse1) 0) (< ~N~0 0) (not (< .cse48 0)))))))) .cse10) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse52 (store (store .cse6 .cse7 (mod .cse8 ~N~0)) .cse9 v_ArrVal_889))) (let ((.cse51 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse52) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse50 (store (store (store (store .cse52 .cse5 (mod .cse51 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (= (select .cse50 .cse1) 0) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (< .cse51 0) (not (= (select .cse50 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (< ~N~0 0)))))) .cse10) (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (~N~0 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse54 (mod .cse8 ~N~0))) (let ((.cse56 (store (store .cse6 .cse7 .cse54) .cse9 v_ArrVal_889))) (let ((.cse55 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse56) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse53 (store (store (store (store .cse56 .cse5 (mod .cse55 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (= (select .cse53 .cse1) 0) (not (= .cse54 0)) (< .cse55 0) (not (= (select .cse53 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (< ~N~0 0))))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))))) (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (~N~0 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse57 (mod .cse8 ~N~0))) (let ((.cse61 (store (store .cse6 .cse7 .cse57) .cse9 v_ArrVal_889))) (let ((.cse60 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse61) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse59 (mod .cse60 ~N~0))) (let ((.cse58 (store (store (store (store .cse61 .cse5 (+ ~N~0 .cse59)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (not (= .cse57 0)) (not (= (select .cse58 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse59 0) (= (select .cse58 .cse1) 0) (not (< ~N~0 0)) (not (< .cse60 0))))))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))))) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse64 (store (store .cse6 .cse7 (mod .cse8 ~N~0)) .cse9 v_ArrVal_889))) (let ((.cse63 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse64) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) ~N~0))) (let ((.cse62 (store (store (store (store .cse64 .cse5 .cse63) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (= (select .cse62 .cse1) 0) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (not (= .cse63 0)) (not (= (select .cse62 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (< ~N~0 0)))))) .cse10) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse68 (store (store .cse6 .cse7 (mod .cse8 ~N~0)) .cse9 v_ArrVal_889))) (let ((.cse67 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse68) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse66 (mod .cse67 ~N~0))) (let ((.cse65 (store (store (store (store .cse68 .cse5 (+ ~N~0 .cse66)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (= (select .cse65 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (= .cse66 0) (= (select .cse65 .cse1) 0) (not (< ~N~0 0)) (not (< .cse67 0)))))))) .cse10) (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (~N~0 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse70 (mod .cse8 ~N~0))) (let ((.cse72 (store (store .cse6 .cse7 .cse70) .cse9 v_ArrVal_889))) (let ((.cse71 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse72) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) ~N~0))) (let ((.cse69 (store (store (store (store .cse72 .cse5 .cse71) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (= (select .cse69 .cse1) 0) (not (= .cse70 0)) (not (= .cse71 0)) (not (= (select .cse69 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (< ~N~0 0))))))))))))) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse75 (store (store .cse6 .cse7 (mod .cse8 ~N~0)) .cse9 v_ArrVal_889))) (let ((.cse74 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse75) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) ~N~0))) (let ((.cse73 (store (store (store (store .cse75 .cse5 .cse74) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (= (select .cse73 .cse1) 0) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (not (= .cse74 0)) (not (= (select .cse73 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (not (< ~N~0 0))))))) .cse10) (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (~N~0 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse77 (mod .cse8 ~N~0))) (let ((.cse79 (store (store .cse6 .cse7 .cse77) .cse9 v_ArrVal_889))) (let ((.cse78 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse79) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse76 (store (store (store (store .cse79 .cse5 (mod .cse78 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (= (select .cse76 .cse1) 0) (not (= .cse77 0)) (< .cse78 0) (not (= (select .cse76 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (< ~N~0 0)))))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))) (not (<= .cse3 |v_ULTIMATE.start_main_~i~0#1_276|))))))) is different from true [2022-11-16 12:34:36,339 WARN L233 SmtUtils]: Spent 38.61s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:34:42,558 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse7 (+ (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset|) 1))) (and (forall ((v_ArrVal_886 Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886)))) (let ((.cse0 (store (store (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (mod v_ArrVal_886 ~N~0)) .cse5 v_ArrVal_889))) (let ((.cse3 (select (select (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse2 (mod .cse3 ~N~0))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (not (= (select (store (store (store (store .cse0 .cse1 (+ .cse2 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse2 0) (< ~N~0 0) (not (< .cse3 0)))))))) (< v_ArrVal_886 0) (not (<= .cse7 v_ArrVal_886)))) (forall ((v_ArrVal_886 Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (~N~0 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse11 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886)))) (let ((.cse8 (store (store (select .cse11 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (mod v_ArrVal_886 ~N~0)) .cse5 v_ArrVal_889))) (let ((.cse10 (select (select (store .cse11 |c_ULTIMATE.start_main_~a~0#1.base| .cse8) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse9 (mod .cse10 ~N~0))) (or (not (= (select (store (store (store (store .cse8 .cse1 (+ .cse9 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse9 0) (not (< .cse10 0)) (not (< ~N~0 0)))))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))))) (not (<= .cse7 v_ArrVal_886)))) (forall ((v_ArrVal_886 Int)) (or (< v_ArrVal_886 0) (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse15 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886)))) (let ((.cse12 (store (store (select .cse15 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (mod v_ArrVal_886 ~N~0)) .cse5 v_ArrVal_889))) (let ((.cse14 (select (select (store .cse15 |c_ULTIMATE.start_main_~a~0#1.base| .cse12) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse13 (mod .cse14 ~N~0))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (not (= (select (store (store (store (store .cse12 .cse1 (+ .cse13 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse13 0) (not (< .cse14 0)) (not (< ~N~0 0)))))))) (not (<= .cse7 v_ArrVal_886)))) (forall ((v_ArrVal_886 Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse19 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886)))) (let ((.cse18 (store (store (select .cse19 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (mod v_ArrVal_886 ~N~0)) .cse5 v_ArrVal_889))) (let ((.cse16 (select (select (store .cse19 |c_ULTIMATE.start_main_~a~0#1.base| .cse18) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse17 (store (store (store (store .cse18 .cse1 (mod .cse16 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (< .cse16 0) (not (= (select .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (= (select .cse17 .cse1) 0) (< ~N~0 0))))))) (< v_ArrVal_886 0) (not (<= .cse7 v_ArrVal_886)))) (forall ((v_ArrVal_886 Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (~N~0 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse23 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886))) (.cse21 (mod v_ArrVal_886 ~N~0))) (let ((.cse22 (store (store (select .cse23 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| .cse21) .cse5 v_ArrVal_889))) (let ((.cse20 (select (select (store .cse23 |c_ULTIMATE.start_main_~a~0#1.base| .cse22) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< .cse20 0) (not (= .cse21 0)) (= (select (store (store (store (store .cse22 .cse1 (mod .cse20 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897) .cse1) 0) (< ~N~0 0)))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))))) (not (<= .cse7 v_ArrVal_886)))) (forall ((v_ArrVal_886 Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse27 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886)))) (let ((.cse26 (store (store (select .cse27 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (mod v_ArrVal_886 ~N~0)) .cse5 v_ArrVal_889))) (let ((.cse24 (select (select (store .cse27 |c_ULTIMATE.start_main_~a~0#1.base| .cse26) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse25 (store (store (store (store .cse26 .cse1 (mod .cse24 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (< .cse24 0) (not (= (select .cse25 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (= (select .cse25 .cse1) 0) (not (< ~N~0 0)))))))) (< v_ArrVal_886 0) (not (<= .cse7 v_ArrVal_886)))) (forall ((v_ArrVal_886 Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (~N~0 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse31 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886))) (.cse29 (mod v_ArrVal_886 ~N~0))) (let ((.cse30 (store (store (select .cse31 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| .cse29) .cse5 v_ArrVal_889))) (let ((.cse28 (select (select (store .cse31 |c_ULTIMATE.start_main_~a~0#1.base| .cse30) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< .cse28 0) (not (= .cse29 0)) (= (select (store (store (store (store .cse30 .cse1 (mod .cse28 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897) .cse1) 0) (not (< ~N~0 0))))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)))) (not (<= .cse7 v_ArrVal_886)))) (forall ((v_ArrVal_886 Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_276| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_275| Int)) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_274| Int)) (or (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (~N~0 Int) (v_ArrVal_889 Int) (v_ArrVal_897 Int)) (let ((.cse35 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886)))) (let ((.cse32 (store (store (select .cse35 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (mod v_ArrVal_886 ~N~0)) .cse5 v_ArrVal_889))) (let ((.cse34 (select (select (store .cse35 |c_ULTIMATE.start_main_~a~0#1.base| .cse32) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse33 (mod .cse34 ~N~0))) (or (not (= (select (store (store (store (store .cse32 .cse1 (+ .cse33 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse33 0) (< ~N~0 0) (not (< .cse34 0)))))))) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)))))) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)))) (not (<= .cse7 v_ArrVal_886))))))) is different from true [2022-11-16 12:35:37,583 WARN L233 SmtUtils]: Spent 29.73s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:36:32,521 WARN L233 SmtUtils]: Spent 26.12s on a formula simplification that was a NOOP. DAG size: 91 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:36:38,288 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse0 (+ (select .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset|) 4)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_886 Int) (v_ArrVal_897 Int)) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886)))) (let ((.cse1 (store (store (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (mod v_ArrVal_886 ~N~0)) .cse6 v_ArrVal_889))) (let ((.cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse3 (mod .cse4 ~N~0))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (< v_ArrVal_886 .cse0) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (not (= (select (store (store (store (store .cse1 .cse2 (+ .cse3 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse3 0) (not (< .cse4 0)) (not (< ~N~0 0)))))))) (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_886 Int) (v_ArrVal_897 Int)) (let ((.cse11 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886))) (.cse9 (mod v_ArrVal_886 ~N~0))) (let ((.cse10 (store (store (select .cse11 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| .cse9) .cse6 v_ArrVal_889))) (let ((.cse8 (select (select (store .cse11 |c_ULTIMATE.start_main_~a~0#1.base| .cse10) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (< .cse8 0) (< v_ArrVal_886 .cse0) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (not (= .cse9 0)) (= (select (store (store (store (store .cse10 .cse2 (mod .cse8 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897) .cse2) 0) (< ~N~0 0)))))) (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_886 Int) (v_ArrVal_897 Int)) (let ((.cse15 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886)))) (let ((.cse12 (store (store (select .cse15 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (mod v_ArrVal_886 ~N~0)) .cse6 v_ArrVal_889))) (let ((.cse14 (select (select (store .cse15 |c_ULTIMATE.start_main_~a~0#1.base| .cse12) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse13 (mod .cse14 ~N~0))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (< v_ArrVal_886 .cse0) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (not (= (select (store (store (store (store .cse12 .cse2 (+ .cse13 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse13 0) (< ~N~0 0) (not (< .cse14 0)))))))) (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_886 Int) (v_ArrVal_897 Int)) (let ((.cse19 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886)))) (let ((.cse16 (store (store (select .cse19 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (mod v_ArrVal_886 ~N~0)) .cse6 v_ArrVal_889))) (let ((.cse18 (select (select (store .cse19 |c_ULTIMATE.start_main_~a~0#1.base| .cse16) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse17 (mod .cse18 ~N~0))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (< v_ArrVal_886 .cse0) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (not (= (select (store (store (store (store .cse16 .cse2 (+ .cse17 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse17 0) (< v_ArrVal_886 0) (not (< .cse18 0)) (not (< ~N~0 0)))))))) (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_886 Int) (v_ArrVal_897 Int)) (let ((.cse23 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886)))) (let ((.cse22 (store (store (select .cse23 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (mod v_ArrVal_886 ~N~0)) .cse6 v_ArrVal_889))) (let ((.cse20 (select (select (store .cse23 |c_ULTIMATE.start_main_~a~0#1.base| .cse22) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse21 (store (store (store (store .cse22 .cse2 (mod .cse20 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (< .cse20 0) (< v_ArrVal_886 .cse0) (not (= (select .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (= (select .cse21 .cse2) 0) (< v_ArrVal_886 0) (not (< ~N~0 0)))))))) (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_886 Int) (v_ArrVal_897 Int)) (let ((.cse27 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886)))) (let ((.cse24 (store (store (select .cse27 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (mod v_ArrVal_886 ~N~0)) .cse6 v_ArrVal_889))) (let ((.cse26 (select (select (store .cse27 |c_ULTIMATE.start_main_~a~0#1.base| .cse24) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse25 (mod .cse26 ~N~0))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (< v_ArrVal_886 .cse0) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (not (= (select (store (store (store (store .cse24 .cse2 (+ .cse25 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (= .cse25 0) (< v_ArrVal_886 0) (< ~N~0 0) (not (< .cse26 0)))))))) (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_886 Int) (v_ArrVal_897 Int)) (let ((.cse31 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886)))) (let ((.cse30 (store (store (select .cse31 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (mod v_ArrVal_886 ~N~0)) .cse6 v_ArrVal_889))) (let ((.cse28 (select (select (store .cse31 |c_ULTIMATE.start_main_~a~0#1.base| .cse30) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse29 (store (store (store (store .cse30 .cse2 (mod .cse28 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (< .cse28 0) (< v_ArrVal_886 .cse0) (not (= (select .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|) 0)) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (= (select .cse29 .cse2) 0) (< v_ArrVal_886 0) (< ~N~0 0))))))) (forall ((v_ArrVal_896 Int) (v_ArrVal_894 Int) (|v_ULTIMATE.start_main_~i~0#1_275| Int) (|v_ULTIMATE.start_main_~i~0#1_274| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_276| Int) (v_ArrVal_889 Int) (v_ArrVal_886 Int) (v_ArrVal_897 Int)) (let ((.cse35 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_886))) (.cse33 (mod v_ArrVal_886 ~N~0))) (let ((.cse34 (store (store (select .cse35 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| .cse33) .cse6 v_ArrVal_889))) (let ((.cse32 (select (select (store .cse35 |c_ULTIMATE.start_main_~a~0#1.base| .cse34) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (or (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_276| 1) |v_ULTIMATE.start_main_~i~0#1_275|)) (< .cse32 0) (< v_ArrVal_886 .cse0) (not (<= 3 |v_ULTIMATE.start_main_~i~0#1_276|)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_275| 1) |v_ULTIMATE.start_main_~i~0#1_274|)) (not (= .cse33 0)) (= (select (store (store (store (store .cse34 .cse2 (mod .cse32 ~N~0)) (+ (* |v_ULTIMATE.start_main_~i~0#1_276| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_894) (+ (* |v_ULTIMATE.start_main_~i~0#1_275| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_896) (+ (* |v_ULTIMATE.start_main_~i~0#1_274| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_897) .cse2) 0) (not (< ~N~0 0)))))))))) is different from true