./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-multidimensional/add-3-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/add-3-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash efbd812580893a7521723358e51d4f43c4b930b57b026212f5a7d5f447f3e0f8 --- 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 16:26:54,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:26:54,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:26:54,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:26:54,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:26:55,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:26:55,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:26:55,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:26:55,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:26:55,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:26:55,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:26:55,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:26:55,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:26:55,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:26:55,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:26:55,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:26:55,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:26:55,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:26:55,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:26:55,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:26:55,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:26:55,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:26:55,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:26:55,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:26:55,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:26:55,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:26:55,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:26:55,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:26:55,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:26:55,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:26:55,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:26:55,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:26:55,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:26:55,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:26:55,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:26:55,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:26:55,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:26:55,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:26:55,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:26:55,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:26:55,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:26:55,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 16:26:55,082 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:26:55,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:26:55,083 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:26:55,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:26:55,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:26:55,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:26:55,085 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:26:55,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:26:55,085 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:26:55,085 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:26:55,086 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:26:55,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:26:55,086 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:26:55,086 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:26:55,087 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:26:55,087 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:26:55,087 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:26:55,087 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:26:55,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:26:55,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:26:55,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:26:55,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:26:55,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:26:55,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:26:55,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:26:55,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:26:55,090 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:26:55,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:26:55,091 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:26:55,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:26:55,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:26:55,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:26:55,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:26:55,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:26:55,092 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:26:55,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:26:55,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:26:55,093 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:26:55,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:26:55,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:26:55,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:26:55,094 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_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efbd812580893a7521723358e51d4f43c4b930b57b026212f5a7d5f447f3e0f8 [2022-11-16 16:26:55,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:26:55,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:26:55,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:26:55,469 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:26:55,470 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:26:55,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/array-multidimensional/add-3-n-u.c [2022-11-16 16:26:55,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/data/29042d63a/0bc57593aefd4dbdb27c5212b8c196d2/FLAG8d2facced [2022-11-16 16:26:56,068 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:26:56,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/sv-benchmarks/c/array-multidimensional/add-3-n-u.c [2022-11-16 16:26:56,082 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/data/29042d63a/0bc57593aefd4dbdb27c5212b8c196d2/FLAG8d2facced [2022-11-16 16:26:56,446 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/data/29042d63a/0bc57593aefd4dbdb27c5212b8c196d2 [2022-11-16 16:26:56,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:26:56,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:26:56,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:26:56,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:26:56,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:26:56,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f48604e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56, skipping insertion in model container [2022-11-16 16:26:56,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:26:56,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:26:56,675 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_7deafd02-c20e-4d12-8472-150c41f78d3d/sv-benchmarks/c/array-multidimensional/add-3-n-u.c[321,334] [2022-11-16 16:26:56,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:26:56,728 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:26:56,736 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_7deafd02-c20e-4d12-8472-150c41f78d3d/sv-benchmarks/c/array-multidimensional/add-3-n-u.c[321,334] [2022-11-16 16:26:56,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:26:56,761 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:26:56,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56 WrapperNode [2022-11-16 16:26:56,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:26:56,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:26:56,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:26:56,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:26:56,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,819 INFO L138 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 118 [2022-11-16 16:26:56,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:26:56,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:26:56,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:26:56,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:26:56,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:26:56,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:26:56,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:26:56,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:26:56,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56" (1/1) ... [2022-11-16 16:26:56,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:26:56,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:26:56,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:26:56,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:26:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:26:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:26:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:26:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:26:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:26:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:26:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:26:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:26:57,046 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:26:57,049 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:26:57,309 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:26:57,391 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:26:57,391 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-16 16:26:57,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:26:57 BoogieIcfgContainer [2022-11-16 16:26:57,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:26:57,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:26:57,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:26:57,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:26:57,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:26:56" (1/3) ... [2022-11-16 16:26:57,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d01b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:26:57, skipping insertion in model container [2022-11-16 16:26:57,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:26:56" (2/3) ... [2022-11-16 16:26:57,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d01b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:26:57, skipping insertion in model container [2022-11-16 16:26:57,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:26:57" (3/3) ... [2022-11-16 16:26:57,403 INFO L112 eAbstractionObserver]: Analyzing ICFG add-3-n-u.c [2022-11-16 16:26:57,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:26:57,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:26:57,514 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:26:57,535 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=FINITE_AUTOMATA, 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;@6b6818ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:26:57,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 16:26:57,538 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:26:57,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 16:26:57,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:26:57,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:26:57,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:26:57,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:26:57,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1242475547, now seen corresponding path program 1 times [2022-11-16 16:26:57,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:26:57,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411309380] [2022-11-16 16:26:57,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:26:57,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:26:57,708 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:26:57,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456780747] [2022-11-16 16:26:57,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:26:57,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:26:57,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:26:57,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:26:57,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 16:26:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:26:57,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:26:57,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:26:57,942 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 16:26:57,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:26:57,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:26:57,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411309380] [2022-11-16 16:26:57,944 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:26:57,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456780747] [2022-11-16 16:26:57,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456780747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:26:57,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:26:57,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:26:57,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548471958] [2022-11-16 16:26:57,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:26:57,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:26:57,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:26:57,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:26:57,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:26:57,998 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:26:58,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:26:58,100 INFO L93 Difference]: Finished difference Result 29 states and 47 transitions. [2022-11-16 16:26:58,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:26:58,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 16:26:58,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:26:58,142 INFO L225 Difference]: With dead ends: 29 [2022-11-16 16:26:58,145 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 16:26:58,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:26:58,156 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:26:58,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:26:58,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 16:26:58,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-16 16:26:58,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:26:58,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 23 transitions. [2022-11-16 16:26:58,210 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 23 transitions. Word has length 8 [2022-11-16 16:26:58,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:26:58,211 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 23 transitions. [2022-11-16 16:26:58,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:26:58,211 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2022-11-16 16:26:58,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 16:26:58,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:26:58,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:26:58,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 16:26:58,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:26:58,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:26:58,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:26:58,420 INFO L85 PathProgramCache]: Analyzing trace with hash 103004432, now seen corresponding path program 1 times [2022-11-16 16:26:58,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:26:58,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161371918] [2022-11-16 16:26:58,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:26:58,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:26:58,438 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:26:58,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [105773482] [2022-11-16 16:26:58,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:26:58,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:26:58,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:26:58,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:26:58,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 16:26:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:26:58,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:26:58,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:26:58,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:26:58,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:26:58,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:26:58,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161371918] [2022-11-16 16:26:58,607 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:26:58,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105773482] [2022-11-16 16:26:58,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105773482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:26:58,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:26:58,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:26:58,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242445238] [2022-11-16 16:26:58,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:26:58,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:26:58,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:26:58,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:26:58,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:26:58,611 INFO L87 Difference]: Start difference. First operand 15 states and 23 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:26:58,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:26:58,678 INFO L93 Difference]: Finished difference Result 40 states and 63 transitions. [2022-11-16 16:26:58,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:26:58,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-16 16:26:58,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:26:58,680 INFO L225 Difference]: With dead ends: 40 [2022-11-16 16:26:58,680 INFO L226 Difference]: Without dead ends: 27 [2022-11-16 16:26:58,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:26:58,684 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 48 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:26:58,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 11 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:26:58,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-16 16:26:58,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2022-11-16 16:26:58,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 0 states have call successors, (0), 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 16:26:58,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2022-11-16 16:26:58,697 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 26 transitions. Word has length 10 [2022-11-16 16:26:58,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:26:58,698 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 26 transitions. [2022-11-16 16:26:58,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:26:58,698 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2022-11-16 16:26:58,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 16:26:58,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:26:58,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:26:58,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 16:26:58,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:26:58,906 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:26:58,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:26:58,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1848574842, now seen corresponding path program 1 times [2022-11-16 16:26:58,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:26:58,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295261700] [2022-11-16 16:26:58,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:26:58,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:26:58,919 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:26:58,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1891092656] [2022-11-16 16:26:58,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:26:58,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:26:58,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:26:58,927 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:26:58,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 16:26:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:26:59,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:26:59,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:26:59,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:26:59,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:26:59,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:26:59,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295261700] [2022-11-16 16:26:59,063 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:26:59,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891092656] [2022-11-16 16:26:59,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891092656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:26:59,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:26:59,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:26:59,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398854113] [2022-11-16 16:26:59,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:26:59,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:26:59,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:26:59,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:26:59,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:26:59,066 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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 16:26:59,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:26:59,163 INFO L93 Difference]: Finished difference Result 43 states and 63 transitions. [2022-11-16 16:26:59,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:26:59,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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 16:26:59,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:26:59,166 INFO L225 Difference]: With dead ends: 43 [2022-11-16 16:26:59,166 INFO L226 Difference]: Without dead ends: 27 [2022-11-16 16:26:59,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 16:26:59,170 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:26:59,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 12 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:26:59,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-16 16:26:59,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2022-11-16 16:26:59,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 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 16:26:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2022-11-16 16:26:59,192 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 12 [2022-11-16 16:26:59,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:26:59,192 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2022-11-16 16:26:59,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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 16:26:59,193 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2022-11-16 16:26:59,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 16:26:59,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:26:59,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:26:59,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 16:26:59,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:26:59,399 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:26:59,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:26:59,400 INFO L85 PathProgramCache]: Analyzing trace with hash 2114319717, now seen corresponding path program 1 times [2022-11-16 16:26:59,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:26:59,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363234993] [2022-11-16 16:26:59,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:26:59,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:26:59,413 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:26:59,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [252546727] [2022-11-16 16:26:59,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:26:59,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:26:59,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:26:59,415 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:26:59,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 16:26:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:26:59,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 16:26:59,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:26:59,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:26:59,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:26:59,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:26:59,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:26:59,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363234993] [2022-11-16 16:26:59,583 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:26:59,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252546727] [2022-11-16 16:26:59,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252546727] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:26:59,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [296865758] [2022-11-16 16:26:59,605 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 16:26:59,605 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:26:59,609 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:26:59,615 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:26:59,616 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:26:59,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:26:59,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:26:59,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:26:59,853 INFO L321 Elim1Store]: treesize reduction 167, result has 23.4 percent of original size [2022-11-16 16:26:59,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 75 [2022-11-16 16:26:59,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:26:59,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:26:59,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:00,114 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-16 16:27:00,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-16 16:27:00,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:00,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:00,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 69 [2022-11-16 16:27:00,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:00,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:00,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:00,606 INFO L321 Elim1Store]: treesize reduction 162, result has 16.5 percent of original size [2022-11-16 16:27:00,607 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 2 case distinctions, treesize of input 468 treesize of output 436 [2022-11-16 16:27:00,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:00,799 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:00,799 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:01,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:01,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:01,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:01,384 INFO L321 Elim1Store]: treesize reduction 158, result has 18.6 percent of original size [2022-11-16 16:27:01,385 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 2 case distinctions, treesize of input 299 treesize of output 279 [2022-11-16 16:27:01,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:01,534 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:01,534 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:01,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:01,681 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:01,682 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:01,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:01,757 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:01,758 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:01,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:01,826 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:01,827 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:01,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:01,926 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:01,927 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:02,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:02,020 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:02,020 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:02,083 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:02,100 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:02,100 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:02,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:02,370 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:02,371 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:02,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:02,433 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:02,434 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:02,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:02,504 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:02,504 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:02,512 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:27:03,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [296865758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:27:03,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:27:03,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4] total 11 [2022-11-16 16:27:03,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636316839] [2022-11-16 16:27:03,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:27:03,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:27:03,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:27:03,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:27:03,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-16 16:27:03,234 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:27:03,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:27:03,743 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2022-11-16 16:27:03,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:27:03,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-16 16:27:03,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:27:03,745 INFO L225 Difference]: With dead ends: 42 [2022-11-16 16:27:03,745 INFO L226 Difference]: Without dead ends: 33 [2022-11-16 16:27:03,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2022-11-16 16:27:03,746 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:27:03,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 9 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:27:03,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-16 16:27:03,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 22. [2022-11-16 16:27:03,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:27:03,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2022-11-16 16:27:03,766 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 13 [2022-11-16 16:27:03,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:27:03,766 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2022-11-16 16:27:03,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:27:03,767 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2022-11-16 16:27:03,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 16:27:03,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:27:03,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:27:03,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 16:27:03,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:27:03,973 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:27:03,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:27:03,974 INFO L85 PathProgramCache]: Analyzing trace with hash -475134270, now seen corresponding path program 1 times [2022-11-16 16:27:03,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:27:03,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779738236] [2022-11-16 16:27:03,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:27:03,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:27:03,984 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:27:03,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693035414] [2022-11-16 16:27:03,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:27:03,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:27:03,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:27:03,986 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:27:04,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 16:27:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:27:04,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 16:27:04,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:27:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 16:27:04,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:27:04,132 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 16:27:04,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:27:04,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779738236] [2022-11-16 16:27:04,132 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:27:04,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693035414] [2022-11-16 16:27:04,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693035414] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:27:04,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1471323060] [2022-11-16 16:27:04,137 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-16 16:27:04,137 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:27:04,138 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:27:04,138 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:27:04,138 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:27:04,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:04,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:04,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:04,295 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-16 16:27:04,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-16 16:27:04,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:04,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:04,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:04,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 55 [2022-11-16 16:27:04,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:04,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:04,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 61 [2022-11-16 16:27:04,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:04,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:04,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:04,609 INFO L321 Elim1Store]: treesize reduction 162, result has 16.5 percent of original size [2022-11-16 16:27:04,611 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 2 case distinctions, treesize of input 468 treesize of output 436 [2022-11-16 16:27:04,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:04,731 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:04,731 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:04,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:04,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:04,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:04,951 INFO L321 Elim1Store]: treesize reduction 139, result has 18.7 percent of original size [2022-11-16 16:27:04,951 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 2 case distinctions, treesize of input 287 treesize of output 271 [2022-11-16 16:27:05,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:05,040 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:05,040 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:05,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:05,127 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:05,128 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:05,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:05,197 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:05,198 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:05,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:05,319 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:05,320 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:05,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:05,385 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:05,386 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:05,482 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:05,496 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:05,497 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:05,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:05,556 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:05,557 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:05,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:05,636 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:05,637 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:05,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:05,712 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:05,713 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:05,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:05,766 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:05,767 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:05,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:05,885 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:05,886 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:05,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:05,927 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:05,928 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:05,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,010 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:06,010 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:06,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,061 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:06,062 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:06,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,114 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:06,114 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:06,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,269 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:06,269 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:06,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,381 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:06,382 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:06,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,554 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,600 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:06,601 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:06,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,717 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:06,718 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:06,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,886 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:27:06,886 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:27:06,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:06,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:07,012 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:07,013 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:07,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:07,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:07,195 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:27:07,196 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:27:07,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:07,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:07,329 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:07,329 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:07,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:07,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:07,558 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:27:07,559 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:27:07,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:07,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:07,655 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:07,656 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:07,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:07,782 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:07,783 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:07,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:07,837 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:07,837 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:07,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:07,939 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:07,939 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:08,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:08,017 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:08,017 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:08,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:08,081 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:08,082 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:08,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:08,182 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:08,182 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:08,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:08,246 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:08,247 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:08,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:08,297 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:08,297 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:08,304 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:27:09,186 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '711#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#C~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#C~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4))))) |ULTIMATE.start_main_#t~mem10#1|) (= |ULTIMATE.start_main_#t~mem9#1| (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)))))) (= (ite (= (mod |ULTIMATE.start_main_#t~mem10#1| 4294967296) (mod (+ |ULTIMATE.start_main_#t~mem9#1| |ULTIMATE.start_main_#t~mem8#1|) 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#A~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4))))) |ULTIMATE.start_main_#t~mem8#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-16 16:27:09,186 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:27:09,186 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:27:09,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-16 16:27:09,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626587270] [2022-11-16 16:27:09,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 16:27:09,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 16:27:09,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:27:09,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 16:27:09,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2022-11-16 16:27:09,187 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:27:09,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:27:09,341 INFO L93 Difference]: Finished difference Result 64 states and 89 transitions. [2022-11-16 16:27:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:27:09,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-16 16:27:09,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:27:09,342 INFO L225 Difference]: With dead ends: 64 [2022-11-16 16:27:09,342 INFO L226 Difference]: Without dead ends: 44 [2022-11-16 16:27:09,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2022-11-16 16:27:09,344 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 51 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:27:09,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 18 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:27:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-16 16:27:09,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 37. [2022-11-16 16:27:09,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 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 16:27:09,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2022-11-16 16:27:09,363 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 18 [2022-11-16 16:27:09,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:27:09,363 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2022-11-16 16:27:09,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:27:09,364 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-11-16 16:27:09,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 16:27:09,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:27:09,365 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:27:09,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-16 16:27:09,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:27:09,570 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:27:09,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:27:09,571 INFO L85 PathProgramCache]: Analyzing trace with hash 795485591, now seen corresponding path program 2 times [2022-11-16 16:27:09,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:27:09,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535803501] [2022-11-16 16:27:09,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:27:09,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:27:09,603 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:27:09,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513964883] [2022-11-16 16:27:09,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 16:27:09,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:27:09,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:27:09,605 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:27:09,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 16:27:09,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 16:27:09,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 16:27:09,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 16:27:09,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:27:09,785 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-16 16:27:09,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:27:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-16 16:27:09,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:27:09,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535803501] [2022-11-16 16:27:09,828 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:27:09,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513964883] [2022-11-16 16:27:09,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513964883] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:27:09,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [888800190] [2022-11-16 16:27:09,831 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-16 16:27:09,831 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:27:09,831 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:27:09,831 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:27:09,831 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:27:09,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:09,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:09,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:09,954 INFO L321 Elim1Store]: treesize reduction 167, result has 23.4 percent of original size [2022-11-16 16:27:09,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 75 [2022-11-16 16:27:09,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:09,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:09,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:10,111 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-16 16:27:10,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-16 16:27:10,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:10,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:10,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 61 [2022-11-16 16:27:10,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:10,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:10,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:10,341 INFO L321 Elim1Store]: treesize reduction 162, result has 16.5 percent of original size [2022-11-16 16:27:10,342 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 2 case distinctions, treesize of input 468 treesize of output 436 [2022-11-16 16:27:10,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:10,459 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:10,460 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:10,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:10,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:27:10,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:10,665 INFO L321 Elim1Store]: treesize reduction 158, result has 18.6 percent of original size [2022-11-16 16:27:10,666 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 2 case distinctions, treesize of input 299 treesize of output 279 [2022-11-16 16:27:10,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:10,762 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:10,762 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:10,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:10,842 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:10,842 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:10,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:10,897 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:10,898 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,020 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:11,020 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:11,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,091 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:11,091 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,184 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:11,184 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,232 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:11,233 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,313 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:11,313 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:11,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,350 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:11,350 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,394 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,407 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:11,408 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,452 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:11,452 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,500 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:11,501 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,559 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,572 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:11,573 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,617 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:11,618 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,659 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:11,660 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,727 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:11,728 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,765 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:11,766 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:11,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,842 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:11,843 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:11,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:11,952 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:11,952 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:12,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,134 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:12,135 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:12,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,242 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:12,243 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:12,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,400 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:27:12,401 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:27:12,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,514 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:12,514 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:12,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,683 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:27:12,684 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:27:12,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,774 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:12,774 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:12,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:12,938 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:12,939 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:13,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,045 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:27:13,046 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:27:13,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,094 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:13,095 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:13,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,150 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:13,151 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:13,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,202 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:13,202 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:13,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,270 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:13,271 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:13,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,334 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:13,335 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:13,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,387 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:13,387 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:13,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,433 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:13,434 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:13,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,481 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:13,481 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:13,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,515 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:27:13,515 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:27:13,558 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,575 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:13,576 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:13,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:27:13,620 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:27:13,620 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:27:13,626 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:27:14,349 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1047#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#C~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#C~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4))))) |ULTIMATE.start_main_#t~mem10#1|) (= |ULTIMATE.start_main_#t~mem9#1| (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)))))) (= (ite (= (mod |ULTIMATE.start_main_#t~mem10#1| 4294967296) (mod (+ |ULTIMATE.start_main_#t~mem9#1| |ULTIMATE.start_main_#t~mem8#1|) 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#A~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4))))) |ULTIMATE.start_main_#t~mem8#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-16 16:27:14,350 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:27:14,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:27:14,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-16 16:27:14,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464566540] [2022-11-16 16:27:14,351 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 16:27:14,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 16:27:14,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:27:14,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 16:27:14,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2022-11-16 16:27:14,352 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 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 16:27:14,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:27:14,575 INFO L93 Difference]: Finished difference Result 167 states and 219 transitions. [2022-11-16 16:27:14,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:27:14,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 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 16:27:14,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:27:14,578 INFO L225 Difference]: With dead ends: 167 [2022-11-16 16:27:14,578 INFO L226 Difference]: Without dead ends: 140 [2022-11-16 16:27:14,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 51 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2022-11-16 16:27:14,580 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 210 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:27:14,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 28 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:27:14,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-16 16:27:14,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 85. [2022-11-16 16:27:14,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.2857142857142858) internal successors, (108), 84 states have internal predecessors, (108), 0 states have call successors, (0), 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 16:27:14,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 108 transitions. [2022-11-16 16:27:14,619 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 108 transitions. Word has length 24 [2022-11-16 16:27:14,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:27:14,620 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 108 transitions. [2022-11-16 16:27:14,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 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 16:27:14,620 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 108 transitions. [2022-11-16 16:27:14,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-16 16:27:14,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:27:14,622 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:27:14,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-16 16:27:14,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:27:14,827 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:27:14,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:27:14,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2031543819, now seen corresponding path program 3 times [2022-11-16 16:27:14,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:27:14,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841380081] [2022-11-16 16:27:14,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:27:14,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:27:14,858 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:27:14,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482285990] [2022-11-16 16:27:14,859 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 16:27:14,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:27:14,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:27:14,860 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:27:14,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 16:38:43,147 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 16:38:43,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 16:38:43,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 16:38:43,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:38:43,354 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 151 proven. 1 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2022-11-16 16:38:43,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:38:43,405 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 122 proven. 30 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2022-11-16 16:38:43,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:38:43,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841380081] [2022-11-16 16:38:43,406 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:38:43,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482285990] [2022-11-16 16:38:43,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482285990] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:38:43,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [449374587] [2022-11-16 16:38:43,408 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-16 16:38:43,408 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:38:43,409 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:38:43,409 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:38:43,409 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:38:43,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:43,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:43,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:43,562 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-16 16:38:43,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-16 16:38:43,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:43,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:43,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:43,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 55 [2022-11-16 16:38:43,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:43,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:43,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 69 [2022-11-16 16:38:43,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:43,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:43,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:43,816 INFO L321 Elim1Store]: treesize reduction 162, result has 16.5 percent of original size [2022-11-16 16:38:43,817 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 2 case distinctions, treesize of input 468 treesize of output 436 [2022-11-16 16:38:43,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:43,937 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:43,938 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:44,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:44,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:44,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,140 INFO L321 Elim1Store]: treesize reduction 139, result has 18.7 percent of original size [2022-11-16 16:38:44,140 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 2 case distinctions, treesize of input 287 treesize of output 271 [2022-11-16 16:38:44,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,217 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:44,217 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:44,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,298 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:44,298 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:44,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,347 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:44,348 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:44,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,453 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:44,454 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:44,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,505 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:44,505 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:44,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,618 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:44,618 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:44,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,662 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:44,662 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:44,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,743 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:44,744 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:44,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,790 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:44,790 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:44,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,863 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:44,863 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:44,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,932 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:44,932 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:44,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:44,978 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:44,978 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:45,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,056 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:45,057 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:45,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,111 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:45,111 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:45,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,164 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:45,165 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:45,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,228 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:45,229 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:45,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,274 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:45,275 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:45,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,317 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:45,318 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:45,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,385 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:45,386 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:45,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,442 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:45,443 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:45,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,523 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:45,524 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:45,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,585 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:45,585 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:45,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,645 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:45,647 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:45,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,705 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:45,706 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:45,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,750 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:45,751 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:45,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,789 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:45,789 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:45,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,840 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:45,841 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:45,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,878 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:45,879 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:45,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:45,957 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:38:45,957 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:38:46,014 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,015 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,062 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:46,062 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:46,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,246 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:38:46,247 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:38:46,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,351 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:46,352 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:46,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,492 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:38:46,493 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:38:46,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,591 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:46,592 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:46,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,724 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:38:46,724 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:38:46,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,813 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:46,814 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:46,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:46,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:47,022 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:47,022 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:47,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:47,089 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:47,131 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:47,131 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:47,151 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:38:48,055 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1958#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#C~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#C~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4))))) |ULTIMATE.start_main_#t~mem10#1|) (= |ULTIMATE.start_main_#t~mem9#1| (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)))))) (= (ite (= (mod |ULTIMATE.start_main_#t~mem10#1| 4294967296) (mod (+ |ULTIMATE.start_main_#t~mem9#1| |ULTIMATE.start_main_#t~mem8#1|) 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#A~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4))))) |ULTIMATE.start_main_#t~mem8#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-16 16:38:48,055 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:38:48,055 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:38:48,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-16 16:38:48,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348815089] [2022-11-16 16:38:48,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 16:38:48,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 16:38:48,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:38:48,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 16:38:48,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2022-11-16 16:38:48,057 INFO L87 Difference]: Start difference. First operand 85 states and 108 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 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 16:38:48,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:38:48,321 INFO L93 Difference]: Finished difference Result 354 states and 461 transitions. [2022-11-16 16:38:48,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:38:48,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 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 72 [2022-11-16 16:38:48,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:38:48,326 INFO L225 Difference]: With dead ends: 354 [2022-11-16 16:38:48,326 INFO L226 Difference]: Without dead ends: 278 [2022-11-16 16:38:48,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 186 SyntacticMatches, 15 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2022-11-16 16:38:48,329 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 100 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:38:48,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 19 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:38:48,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-11-16 16:38:48,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 271. [2022-11-16 16:38:48,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.2333333333333334) internal successors, (333), 270 states have internal predecessors, (333), 0 states have call successors, (0), 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 16:38:48,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 333 transitions. [2022-11-16 16:38:48,501 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 333 transitions. Word has length 72 [2022-11-16 16:38:48,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:38:48,501 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 333 transitions. [2022-11-16 16:38:48,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 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 16:38:48,502 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 333 transitions. [2022-11-16 16:38:48,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-16 16:38:48,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:38:48,514 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 16, 16, 16, 16, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:38:48,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 16:38:48,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:38:48,739 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:38:48,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:38:48,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1546414407, now seen corresponding path program 4 times [2022-11-16 16:38:48,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:38:48,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571438733] [2022-11-16 16:38:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:38:48,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:38:48,842 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:38:48,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [645860583] [2022-11-16 16:38:48,843 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 16:38:48,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:38:48,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:38:48,844 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:38:48,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 16:38:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:38:49,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 16:38:49,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:38:49,474 INFO L134 CoverageAnalysis]: Checked inductivity of 6720 backedges. 398 proven. 10 refuted. 0 times theorem prover too weak. 6312 trivial. 0 not checked. [2022-11-16 16:38:49,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:38:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 6720 backedges. 398 proven. 10 refuted. 0 times theorem prover too weak. 6312 trivial. 0 not checked. [2022-11-16 16:38:49,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:38:49,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571438733] [2022-11-16 16:38:49,548 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:38:49,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645860583] [2022-11-16 16:38:49,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645860583] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:38:49,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [193011985] [2022-11-16 16:38:49,551 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-16 16:38:49,551 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:38:49,552 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:38:49,552 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:38:49,552 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:38:49,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:49,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:49,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:49,702 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-16 16:38:49,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-16 16:38:49,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:49,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:49,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:49,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 55 [2022-11-16 16:38:49,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:49,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:49,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 69 [2022-11-16 16:38:49,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:49,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:49,916 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:49,952 INFO L321 Elim1Store]: treesize reduction 162, result has 16.5 percent of original size [2022-11-16 16:38:49,953 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 2 case distinctions, treesize of input 468 treesize of output 436 [2022-11-16 16:38:50,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:50,054 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:50,054 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:50,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:50,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:38:50,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:50,247 INFO L321 Elim1Store]: treesize reduction 158, result has 18.6 percent of original size [2022-11-16 16:38:50,247 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 2 case distinctions, treesize of input 299 treesize of output 279 [2022-11-16 16:38:50,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:50,330 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:50,330 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:50,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:50,433 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:50,433 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:50,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:50,500 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:50,500 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:50,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:50,625 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:50,625 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:50,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:50,681 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:50,682 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:50,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:50,778 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:50,779 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:50,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:50,819 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:50,820 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:50,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:50,880 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:50,880 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 0 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:50,915 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:50,929 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:50,930 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:50,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,010 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:51,011 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:51,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,065 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,065 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,107 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,107 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,172 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,172 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,226 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,226 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,266 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:51,267 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:51,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,316 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,317 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,355 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,356 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,380 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,393 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:51,393 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:51,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,453 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,453 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,489 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,490 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,563 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,563 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,596 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,609 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,610 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,648 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:38:51,649 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:38:51,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,698 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,698 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,757 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,757 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,800 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,800 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,859 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,860 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,885 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,899 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:38:51,900 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:38:51,941 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,941 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:51,983 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:51,984 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:52,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,085 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:52,085 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:52,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,232 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,277 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:38:52,278 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:38:52,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,389 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:52,390 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:52,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,538 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:52,538 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:52,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,650 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:52,651 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:52,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,774 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:38:52,774 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:38:52,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,861 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:52,862 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:52,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:52,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:53,020 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:53,021 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:53,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:53,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:38:53,107 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:38:53,108 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:38:53,132 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:38:54,315 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4473#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#C~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#C~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4))))) |ULTIMATE.start_main_#t~mem10#1|) (= |ULTIMATE.start_main_#t~mem9#1| (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)))))) (= (ite (= (mod |ULTIMATE.start_main_#t~mem10#1| 4294967296) (mod (+ |ULTIMATE.start_main_#t~mem9#1| |ULTIMATE.start_main_#t~mem8#1|) 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#A~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4))))) |ULTIMATE.start_main_#t~mem8#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-16 16:38:54,315 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:38:54,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:38:54,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-16 16:38:54,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163047707] [2022-11-16 16:38:54,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 16:38:54,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 16:38:54,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:38:54,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 16:38:54,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=261, Unknown=0, NotChecked=0, Total=420 [2022-11-16 16:38:54,317 INFO L87 Difference]: Start difference. First operand 271 states and 333 transitions. Second operand has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:38:54,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:38:54,792 INFO L93 Difference]: Finished difference Result 817 states and 1171 transitions. [2022-11-16 16:38:54,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 16:38:54,793 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2022-11-16 16:38:54,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:38:54,795 INFO L225 Difference]: With dead ends: 817 [2022-11-16 16:38:54,796 INFO L226 Difference]: Without dead ends: 554 [2022-11-16 16:38:54,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 600 SyntacticMatches, 27 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=244, Invalid=406, Unknown=0, NotChecked=0, Total=650 [2022-11-16 16:38:54,798 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 163 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:38:54,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 36 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:38:54,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-11-16 16:38:55,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 535. [2022-11-16 16:38:55,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 534 states have (on average 1.1629213483146068) internal successors, (621), 534 states have internal predecessors, (621), 0 states have call successors, (0), 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 16:38:55,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 621 transitions. [2022-11-16 16:38:55,015 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 621 transitions. Word has length 216 [2022-11-16 16:38:55,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:38:55,015 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 621 transitions. [2022-11-16 16:38:55,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:38:55,016 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 621 transitions. [2022-11-16 16:38:55,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2022-11-16 16:38:55,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:38:55,024 INFO L195 NwaCegarLoop]: trace histogram [160, 160, 16, 16, 16, 16, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:38:55,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 16:38:55,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 16:38:55,235 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:38:55,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:38:55,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1138692935, now seen corresponding path program 5 times [2022-11-16 16:38:55,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:38:55,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870846789] [2022-11-16 16:38:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:38:55,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:38:55,479 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:38:55,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484015516] [2022-11-16 16:38:55,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 16:38:55,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:38:55,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:38:55,481 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:38:55,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 16:40:26,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2022-11-16 16:40:26,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 16:40:26,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 16:40:26,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:40:26,924 INFO L134 CoverageAnalysis]: Checked inductivity of 31200 backedges. 1838 proven. 55 refuted. 0 times theorem prover too weak. 29307 trivial. 0 not checked. [2022-11-16 16:40:26,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:40:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 31200 backedges. 23 proven. 1870 refuted. 0 times theorem prover too weak. 29307 trivial. 0 not checked. [2022-11-16 16:40:27,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:40:27,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870846789] [2022-11-16 16:40:27,660 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:40:27,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484015516] [2022-11-16 16:40:27,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484015516] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:40:27,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [583467118] [2022-11-16 16:40:27,663 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-16 16:40:27,663 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:40:27,664 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:40:27,664 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:40:27,664 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:40:27,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:40:27,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:40:27,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:40:27,777 INFO L321 Elim1Store]: treesize reduction 167, result has 23.4 percent of original size [2022-11-16 16:40:27,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 75 [2022-11-16 16:40:27,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:40:27,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:40:27,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:40:27,912 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-16 16:40:27,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-16 16:40:27,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:40:27,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:40:27,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 69 [2022-11-16 16:40:28,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:40:28,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:40:28,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:28,105 INFO L321 Elim1Store]: treesize reduction 162, result has 16.5 percent of original size [2022-11-16 16:40:28,106 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 2 case distinctions, treesize of input 468 treesize of output 436 [2022-11-16 16:40:28,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:28,218 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:28,218 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:28,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:40:28,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:40:28,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:28,371 INFO L321 Elim1Store]: treesize reduction 139, result has 18.7 percent of original size [2022-11-16 16:40:28,371 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 2 case distinctions, treesize of input 287 treesize of output 271 [2022-11-16 16:40:28,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:28,444 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:28,444 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:28,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:28,555 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:40:28,555 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:40:28,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:28,595 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:28,595 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:28,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:28,692 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:40:28,692 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:40:28,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:28,747 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:28,747 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:28,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:28,835 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:40:28,835 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:40:28,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:28,893 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:28,893 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:28,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:28,937 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:40:28,938 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:40:28,978 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:28,992 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:28,993 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:29,017 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,030 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:29,030 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:29,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,129 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:29,129 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:29,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,172 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:29,172 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:29,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,269 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:40:29,270 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:40:29,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,327 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:29,328 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:29,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,372 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:29,372 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:29,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,480 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:40:29,480 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:40:29,524 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,564 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:40:29,565 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:40:29,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,747 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:40:29,748 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:40:29,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,845 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:40:29,845 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:40:29,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:29,978 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:40:29,978 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:40:30,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,078 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:40:30,078 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:40:30,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,258 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:40:30,258 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:40:30,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,344 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:40:30,344 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:40:30,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,488 INFO L321 Elim1Store]: treesize reduction 54, result has 51.4 percent of original size [2022-11-16 16:40:30,488 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 3 case distinctions, treesize of input 60 treesize of output 79 [2022-11-16 16:40:30,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,570 INFO L321 Elim1Store]: treesize reduction 62, result has 51.2 percent of original size [2022-11-16 16:40:30,571 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 3 case distinctions, treesize of input 72 treesize of output 91 [2022-11-16 16:40:30,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,658 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:40:30,658 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:40:30,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,694 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:30,695 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:30,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,764 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:30,764 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:30,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,821 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:30,822 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:30,850 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,865 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:30,866 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:30,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:30,964 INFO L321 Elim1Store]: treesize reduction 26, result has 48.0 percent of original size [2022-11-16 16:40:30,964 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 1 case distinctions, treesize of input 66 treesize of output 45 [2022-11-16 16:40:31,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:31,017 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:31,017 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:31,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:40:31,059 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 16:40:31,059 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 1 case distinctions, treesize of input 78 treesize of output 53 [2022-11-16 16:40:31,063 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:40:32,446 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9540#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#C~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#C~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4))))) |ULTIMATE.start_main_#t~mem10#1|) (= |ULTIMATE.start_main_#t~mem9#1| (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)))))) (= (ite (= (mod |ULTIMATE.start_main_#t~mem10#1| 4294967296) (mod (+ |ULTIMATE.start_main_#t~mem9#1| |ULTIMATE.start_main_#t~mem8#1|) 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~p~0#1| 4)) |ULTIMATE.start_main_~#A~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~p~0#1| 4))))) |ULTIMATE.start_main_#t~mem8#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-16 16:40:32,446 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:40:32,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:40:32,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2022-11-16 16:40:32,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337243621] [2022-11-16 16:40:32,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 16:40:32,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 16:40:32,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:40:32,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 16:40:32,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=417, Invalid=639, Unknown=0, NotChecked=0, Total=1056 [2022-11-16 16:40:32,450 INFO L87 Difference]: Start difference. First operand 535 states and 621 transitions. Second operand has 26 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 25 states have internal predecessors, (55), 0 states have call successors, (0), 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 16:40:33,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:40:33,285 INFO L93 Difference]: Finished difference Result 1627 states and 2257 transitions. [2022-11-16 16:40:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 16:40:33,285 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 25 states have internal predecessors, (55), 0 states have call successors, (0), 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 408 [2022-11-16 16:40:33,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:40:33,291 INFO L225 Difference]: With dead ends: 1627 [2022-11-16 16:40:33,291 INFO L226 Difference]: Without dead ends: 1106 [2022-11-16 16:40:33,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1233 GetRequests, 1164 SyntacticMatches, 27 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1640 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=736, Invalid=1156, Unknown=0, NotChecked=0, Total=1892 [2022-11-16 16:40:33,297 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 394 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:40:33,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 72 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 16:40:33,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-11-16 16:40:33,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1063. [2022-11-16 16:40:33,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 1062 states have (on average 1.1271186440677967) internal successors, (1197), 1062 states have internal predecessors, (1197), 0 states have call successors, (0), 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 16:40:33,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1197 transitions. [2022-11-16 16:40:33,587 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1197 transitions. Word has length 408 [2022-11-16 16:40:33,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:40:33,588 INFO L495 AbstractCegarLoop]: Abstraction has 1063 states and 1197 transitions. [2022-11-16 16:40:33,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 25 states have internal predecessors, (55), 0 states have call successors, (0), 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 16:40:33,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1197 transitions. [2022-11-16 16:40:33,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2022-11-16 16:40:33,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:40:33,614 INFO L195 NwaCegarLoop]: trace histogram [352, 352, 16, 16, 16, 16, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:40:33,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 16:40:33,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:40:33,843 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:40:33,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:40:33,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1464801465, now seen corresponding path program 6 times [2022-11-16 16:40:33,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:40:33,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772166789] [2022-11-16 16:40:33,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:40:33,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:40:34,253 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:40:34,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237459633] [2022-11-16 16:40:34,254 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 16:40:34,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:40:34,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:40:34,255 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:40:34,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7deafd02-c20e-4d12-8472-150c41f78d3d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process