./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn5.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_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/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_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/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_25c17287-f644-484b-93ed-c8ef34ec8157/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 2e5b1d71ba93ce7431f315c72529ea116ea643f5eb9195d392455a202e45b249 --- 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 15:52:46,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:52:46,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:52:46,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:52:46,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:52:46,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:52:46,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:52:46,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:52:46,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:52:46,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:52:46,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:52:46,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:52:46,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:52:46,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:52:46,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:52:46,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:52:46,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:52:46,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:52:46,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:52:46,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:52:46,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:52:46,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:52:46,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:52:46,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:52:46,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:52:46,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:52:46,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:52:46,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:52:46,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:52:46,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:52:46,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:52:46,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:52:46,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:52:46,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:52:46,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:52:46,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:52:46,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:52:46,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:52:46,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:52:46,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:52:46,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:52:46,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 15:52:46,674 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:52:46,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:52:46,679 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:52:46,679 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:52:46,680 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:52:46,680 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:52:46,681 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:52:46,681 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:52:46,681 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:52:46,681 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 15:52:46,682 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:52:46,683 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:52:46,683 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 15:52:46,683 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 15:52:46,683 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:52:46,684 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 15:52:46,684 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 15:52:46,684 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 15:52:46,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:52:46,685 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 15:52:46,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:52:46,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 15:52:46,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:52:46,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:52:46,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:52:46,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:52:46,688 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 15:52:46,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:52:46,688 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:52:46,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:52:46,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:52:46,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:52:46,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:52:46,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:52:46,690 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 15:52:46,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:52:46,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:52:46,691 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 15:52:46,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:52:46,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:52:46,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:52:46,692 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_25c17287-f644-484b-93ed-c8ef34ec8157/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e5b1d71ba93ce7431f315c72529ea116ea643f5eb9195d392455a202e45b249 [2022-11-16 15:52:46,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:52:46,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:52:46,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:52:46,991 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:52:46,992 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:52:46,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/array-fpi/ifeqn5.c [2022-11-16 15:52:47,070 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/data/3670ab03c/1ff7b059d9c64c3a85b521802ea0629c/FLAG715bc862d [2022-11-16 15:52:47,694 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:52:47,694 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/sv-benchmarks/c/array-fpi/ifeqn5.c [2022-11-16 15:52:47,706 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/data/3670ab03c/1ff7b059d9c64c3a85b521802ea0629c/FLAG715bc862d [2022-11-16 15:52:48,086 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/data/3670ab03c/1ff7b059d9c64c3a85b521802ea0629c [2022-11-16 15:52:48,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:52:48,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:52:48,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:52:48,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:52:48,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:52:48,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9f867a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48, skipping insertion in model container [2022-11-16 15:52:48,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:52:48,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:52:48,296 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_25c17287-f644-484b-93ed-c8ef34ec8157/sv-benchmarks/c/array-fpi/ifeqn5.c[589,602] [2022-11-16 15:52:48,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:52:48,329 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:52:48,342 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_25c17287-f644-484b-93ed-c8ef34ec8157/sv-benchmarks/c/array-fpi/ifeqn5.c[589,602] [2022-11-16 15:52:48,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:52:48,371 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:52:48,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48 WrapperNode [2022-11-16 15:52:48,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:52:48,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:52:48,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:52:48,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:52:48,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,412 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-11-16 15:52:48,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:52:48,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:52:48,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:52:48,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:52:48,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,438 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:52:48,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:52:48,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:52:48,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:52:48,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48" (1/1) ... [2022-11-16 15:52:48,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:52:48,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:52:48,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:52:48,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:52:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 15:52:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 15:52:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 15:52:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 15:52:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:52:48,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:52:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 15:52:48,607 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:52:48,610 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:52:48,881 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:52:48,991 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:52:48,991 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 15:52:49,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:52:48 BoogieIcfgContainer [2022-11-16 15:52:49,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:52:49,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:52:49,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:52:49,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:52:49,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:52:48" (1/3) ... [2022-11-16 15:52:49,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf62c8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:52:49, skipping insertion in model container [2022-11-16 15:52:49,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:48" (2/3) ... [2022-11-16 15:52:49,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf62c8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:52:49, skipping insertion in model container [2022-11-16 15:52:49,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:52:48" (3/3) ... [2022-11-16 15:52:49,019 INFO L112 eAbstractionObserver]: Analyzing ICFG ifeqn5.c [2022-11-16 15:52:49,055 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:52:49,055 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 15:52:49,130 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:52:49,138 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;@24187331, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:52:49,138 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 15:52:49,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:49,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 15:52:49,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:49,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:49,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:52:49,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:49,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1095923036, now seen corresponding path program 1 times [2022-11-16 15:52:49,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:49,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982927219] [2022-11-16 15:52:49,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:49,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:49,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:49,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982927219] [2022-11-16 15:52:49,384 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-16 15:52:49,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317231793] [2022-11-16 15:52:49,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:49,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:49,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:52:49,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:52:49,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 15:52:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:49,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 15:52:49,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:52:49,585 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 15:52:49,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 15:52:49,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317231793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:49,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:49,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:52:49,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152218002] [2022-11-16 15:52:49,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:49,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:52:49,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:49,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:52:49,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:52:49,633 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:49,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:49,740 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2022-11-16 15:52:49,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:52:49,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 15:52:49,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:49,752 INFO L225 Difference]: With dead ends: 20 [2022-11-16 15:52:49,752 INFO L226 Difference]: Without dead ends: 10 [2022-11-16 15:52:49,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:52:49,766 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:49,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-16 15:52:49,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-16 15:52:49,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 15:52:49,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-16 15:52:49,808 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2022-11-16 15:52:49,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:49,809 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-16 15:52:49,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:49,811 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-11-16 15:52:49,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 15:52:49,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:49,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:49,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 15:52:50,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:50,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:52:50,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:50,023 INFO L85 PathProgramCache]: Analyzing trace with hash 255696374, now seen corresponding path program 1 times [2022-11-16 15:52:50,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:50,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286654234] [2022-11-16 15:52:50,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:50,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:50,087 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:52:50,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230594709] [2022-11-16 15:52:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:50,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:50,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:52:50,092 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:52:50,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 15:52:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:50,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 15:52:50,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:52:50,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:52:50,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 15:52:50,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:50,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286654234] [2022-11-16 15:52:50,292 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:52:50,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230594709] [2022-11-16 15:52:50,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230594709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:52:50,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:52:50,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 15:52:50,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327138178] [2022-11-16 15:52:50,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:52:50,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:52:50,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:50,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:52:50,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:52:50,299 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 15:52:50,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:50,354 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-11-16 15:52:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:52:50,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 15:52:50,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:50,357 INFO L225 Difference]: With dead ends: 21 [2022-11-16 15:52:50,357 INFO L226 Difference]: Without dead ends: 16 [2022-11-16 15:52:50,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 15:52:50,359 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:50,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 6 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:52:50,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-16 15:52:50,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2022-11-16 15:52:50,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 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 15:52:50,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-11-16 15:52:50,371 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2022-11-16 15:52:50,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:50,372 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-11-16 15:52:50,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 15:52:50,374 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-11-16 15:52:50,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 15:52:50,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:50,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:50,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 15:52:50,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-16 15:52:50,582 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:52:50,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:50,583 INFO L85 PathProgramCache]: Analyzing trace with hash -652476163, now seen corresponding path program 1 times [2022-11-16 15:52:50,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:50,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829240541] [2022-11-16 15:52:50,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:50,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:50,643 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:52:50,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745168018] [2022-11-16 15:52:50,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:50,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:50,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:52:50,649 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:52:50,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 15:52:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:50,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 15:52:50,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:52:50,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:50,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:52:50,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:52:51,091 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:52:51,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-11-16 15:52:51,116 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:52:51,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2022-11-16 15:52:51,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:52:51,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:51,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829240541] [2022-11-16 15:52:51,143 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:52:51,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745168018] [2022-11-16 15:52:51,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745168018] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:52:51,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1856019433] [2022-11-16 15:52:51,163 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-16 15:52:51,164 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:52:51,168 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:52:51,174 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:52:51,174 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:52:51,385 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-16 15:52:51,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-16 15:52:51,629 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 15:52:51,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 15:52:51,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 15:52:51,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:51,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:51,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:51,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:52,028 INFO L321 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-16 15:52:52,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-16 15:52:52,213 INFO L321 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-16 15:52:52,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 453 treesize of output 440 [2022-11-16 15:52:52,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:52,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 63 [2022-11-16 15:52:52,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:52,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-16 15:52:52,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:52,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:52,660 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:52,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:52,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:52,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:52,695 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:52:52,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-16 15:52:52,722 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:52:53,127 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '202#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 5 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 5 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 15:52:53,127 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:52:53,127 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:52:53,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2022-11-16 15:52:53,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585343441] [2022-11-16 15:52:53,128 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:52:53,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 15:52:53,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:53,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 15:52:53,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-16 15:52:53,129 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 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 15:52:53,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:53,331 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-16 15:52:53,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 15:52:53,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 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 9 [2022-11-16 15:52:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:53,333 INFO L225 Difference]: With dead ends: 28 [2022-11-16 15:52:53,333 INFO L226 Difference]: Without dead ends: 26 [2022-11-16 15:52:53,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2022-11-16 15:52:53,334 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:53,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 18 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:53,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-16 15:52:53,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 14. [2022-11-16 15:52:53,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:53,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-11-16 15:52:53,345 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 9 [2022-11-16 15:52:53,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:53,347 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-16 15:52:53,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 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 15:52:53,353 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2022-11-16 15:52:53,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 15:52:53,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:53,355 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:53,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 15:52:53,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:53,563 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:52:53,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:53,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1258946262, now seen corresponding path program 2 times [2022-11-16 15:52:53,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:53,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441124900] [2022-11-16 15:52:53,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:53,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:53,625 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:52:53,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163171186] [2022-11-16 15:52:53,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 15:52:53,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:53,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:52:53,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:52:53,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 15:52:53,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 15:52:53,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:52:53,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 15:52:53,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:52:53,777 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:53,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:52:53,810 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:53,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:53,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441124900] [2022-11-16 15:52:53,811 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:52:53,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163171186] [2022-11-16 15:52:53,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163171186] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:52:53,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1870808682] [2022-11-16 15:52:53,815 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-16 15:52:53,816 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:52:53,816 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:52:53,816 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:52:53,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:52:53,967 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-16 15:52:53,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-16 15:52:54,117 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 15:52:54,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 15:52:54,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 15:52:54,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:54,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:54,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:54,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:54,376 INFO L321 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-16 15:52:54,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-16 15:52:54,561 INFO L321 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-16 15:52:54,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 453 treesize of output 436 [2022-11-16 15:52:54,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:54,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 63 [2022-11-16 15:52:54,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:54,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-16 15:52:54,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:54,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:54,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:54,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:54,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:54,833 INFO L321 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-16 15:52:54,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 196 [2022-11-16 15:52:54,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 90 [2022-11-16 15:52:54,900 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:52:54,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 92 [2022-11-16 15:52:54,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:54,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:54,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:54,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:54,972 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:52:54,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-16 15:52:54,997 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:52:55,332 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '336#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 5 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 5 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 15:52:55,332 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:52:55,333 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:52:55,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2022-11-16 15:52:55,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137442293] [2022-11-16 15:52:55,333 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:52:55,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 15:52:55,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:55,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 15:52:55,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-11-16 15:52:55,335 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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 15:52:55,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:55,454 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2022-11-16 15:52:55,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 15:52:55,455 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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 10 [2022-11-16 15:52:55,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:55,455 INFO L225 Difference]: With dead ends: 35 [2022-11-16 15:52:55,455 INFO L226 Difference]: Without dead ends: 23 [2022-11-16 15:52:55,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-11-16 15:52:55,457 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:55,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 13 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:52:55,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-16 15:52:55,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 13. [2022-11-16 15:52:55,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:55,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-11-16 15:52:55,461 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-11-16 15:52:55,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:55,462 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-16 15:52:55,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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 15:52:55,462 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-11-16 15:52:55,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 15:52:55,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:55,463 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:55,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-16 15:52:55,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:55,669 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:52:55,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:55,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2034389572, now seen corresponding path program 3 times [2022-11-16 15:52:55,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:55,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283815389] [2022-11-16 15:52:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:55,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:55,710 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:52:55,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365338623] [2022-11-16 15:52:55,724 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 15:52:55,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:55,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:52:55,727 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:52:55,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 15:52:55,941 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 15:52:55,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:52:55,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-16 15:52:55,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:52:55,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:55,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:55,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:52:56,048 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:52:56,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:52:56,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 15:52:56,361 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:52:56,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-11-16 15:52:56,375 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:52:56,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2022-11-16 15:52:56,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-11-16 15:52:56,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-16 15:52:56,415 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 15:52:56,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:56,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283815389] [2022-11-16 15:52:56,416 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:52:56,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365338623] [2022-11-16 15:52:56,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365338623] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:52:56,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [908708813] [2022-11-16 15:52:56,418 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-16 15:52:56,419 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:52:56,419 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:52:56,419 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:52:56,420 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:52:56,536 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-16 15:52:56,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-16 15:52:56,670 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 15:52:56,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 15:52:56,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 15:52:56,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:56,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:56,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:56,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:56,900 INFO L321 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-16 15:52:56,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-16 15:52:57,002 INFO L321 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-16 15:52:57,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 453 treesize of output 440 [2022-11-16 15:52:57,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:57,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 63 [2022-11-16 15:52:57,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:57,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:57,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-16 15:52:57,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:57,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:57,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:57,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:57,327 INFO L321 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-16 15:52:57,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 196 [2022-11-16 15:52:57,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 61 [2022-11-16 15:52:57,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:57,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34 [2022-11-16 15:52:57,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:57,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:57,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:57,444 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:52:57,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-16 15:52:57,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:57,475 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:52:57,835 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '488#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 5 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 5 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 15:52:57,835 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:52:57,835 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:52:57,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2022-11-16 15:52:57,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368266897] [2022-11-16 15:52:57,836 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:52:57,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 15:52:57,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:52:57,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 15:52:57,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-16 15:52:57,837 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:58,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:52:58,107 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2022-11-16 15:52:58,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:52:58,108 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 15:52:58,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:52:58,108 INFO L225 Difference]: With dead ends: 34 [2022-11-16 15:52:58,109 INFO L226 Difference]: Without dead ends: 32 [2022-11-16 15:52:58,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2022-11-16 15:52:58,110 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 57 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:52:58,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 31 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 78 Invalid, 0 Unknown, 16 Unchecked, 0.2s Time] [2022-11-16 15:52:58,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-16 15:52:58,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 16. [2022-11-16 15:52:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:58,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-11-16 15:52:58,116 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2022-11-16 15:52:58,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:52:58,116 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-16 15:52:58,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:52:58,116 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-11-16 15:52:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 15:52:58,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:52:58,117 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:52:58,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 15:52:58,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:58,325 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:52:58,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:52:58,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1347561873, now seen corresponding path program 4 times [2022-11-16 15:52:58,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:52:58,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991833890] [2022-11-16 15:52:58,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:52:58,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:52:58,372 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:52:58,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274957191] [2022-11-16 15:52:58,372 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 15:52:58,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:52:58,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:52:58,381 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:52:58,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 15:52:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:52:58,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 15:52:58,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:52:58,525 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:58,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:52:58,570 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:52:58,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:52:58,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991833890] [2022-11-16 15:52:58,570 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:52:58,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274957191] [2022-11-16 15:52:58,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274957191] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:52:58,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [401567871] [2022-11-16 15:52:58,574 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-16 15:52:58,574 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:52:58,575 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:52:58,575 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:52:58,576 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:52:58,725 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-16 15:52:58,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-16 15:52:58,895 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 15:52:58,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 15:52:58,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 15:52:59,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:59,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:59,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:59,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:59,153 INFO L321 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-16 15:52:59,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-16 15:52:59,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:59,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 77 [2022-11-16 15:52:59,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:59,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 36 [2022-11-16 15:52:59,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:59,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-16 15:52:59,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:59,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:59,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:59,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:59,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:59,508 INFO L321 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-16 15:52:59,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 199 [2022-11-16 15:52:59,571 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 15:52:59,571 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 2 case distinctions, treesize of input 152 treesize of output 153 [2022-11-16 15:52:59,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:59,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 61 [2022-11-16 15:52:59,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:59,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:59,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 36 [2022-11-16 15:52:59,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:59,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34 [2022-11-16 15:52:59,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:52:59,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:59,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:52:59,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:52:59,686 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:52:59,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-16 15:52:59,745 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:00,211 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '653#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 5 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 5 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 15:53:00,211 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:00,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:53:00,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-11-16 15:53:00,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049214269] [2022-11-16 15:53:00,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:00,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 15:53:00,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:00,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 15:53:00,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-11-16 15:53:00,214 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:00,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:00,380 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-16 15:53:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:53:00,381 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-16 15:53:00,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:00,382 INFO L225 Difference]: With dead ends: 48 [2022-11-16 15:53:00,382 INFO L226 Difference]: Without dead ends: 40 [2022-11-16 15:53:00,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-16 15:53:00,383 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 36 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:00,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 26 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:53:00,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-16 15:53:00,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2022-11-16 15:53:00,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 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 15:53:00,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-16 15:53:00,394 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2022-11-16 15:53:00,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:00,394 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-16 15:53:00,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:00,395 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-16 15:53:00,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 15:53:00,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:00,395 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:00,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 15:53:00,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 15:53:00,601 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:53:00,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:00,602 INFO L85 PathProgramCache]: Analyzing trace with hash 824116829, now seen corresponding path program 5 times [2022-11-16 15:53:00,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:00,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817231304] [2022-11-16 15:53:00,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:00,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:00,657 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:53:00,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806485631] [2022-11-16 15:53:00,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 15:53:00,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:00,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:00,667 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:53:00,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 15:53:00,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 15:53:00,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:53:00,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-16 15:53:00,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:53:01,017 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:01,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:01,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 85 [2022-11-16 15:53:01,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,137 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-16 15:53:01,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-11-16 15:53:01,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:01,225 INFO L321 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size [2022-11-16 15:53:01,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 73 treesize of output 32 [2022-11-16 15:53:01,267 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 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-16 15:53:01,298 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:53:01,305 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:53:01,485 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:01,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:53:01,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 15:53:03,821 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1) c_~N~0)))) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (forall ((v_ArrVal_255 Int)) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)))) (or (<= c_~N~0 0) (< 1 c_~N~0)) (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1) c_~N~0)))))) is different from false [2022-11-16 15:53:04,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2022-11-16 15:53:04,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 15:53:06,215 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse10 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse1 (or (<= c_~N~0 0) (< 1 c_~N~0))) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse6 (* .cse10 8)) (.cse0 (<= .cse10 2147483647))) (and (or (not .cse0) (let ((.cse3 (+ .cse6 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and .cse1 (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse2 .cse3 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1) c_~N~0)))) (forall ((v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse5 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5 1) c_~N~0)))) (forall ((v_ArrVal_255 Int)) (= (select (store (store .cse2 .cse3 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) (not (= |c_ULTIMATE.start_main_~i~0#1| 0)) (or (let ((.cse8 (+ .cse6 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and .cse1 (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~N~0) (= (select (store (store .cse2 .cse8 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)))) (forall ((v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1) c_~N~0)))) (forall ((v_ArrVal_255 Int)) (= (select (store (store .cse2 .cse8 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) .cse0)))) is different from false [2022-11-16 15:53:06,371 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:06,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-11-16 15:53:06,386 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:06,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2022-11-16 15:53:06,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 299 [2022-11-16 15:53:06,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-11-16 15:53:06,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 166 [2022-11-16 15:53:06,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 15:53:06,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2022-11-16 15:53:06,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2022-11-16 15:53:06,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 107 [2022-11-16 15:53:07,081 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-11-16 15:53:07,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:07,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817231304] [2022-11-16 15:53:07,081 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:53:07,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806485631] [2022-11-16 15:53:07,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806485631] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:53:07,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1572638783] [2022-11-16 15:53:07,084 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-16 15:53:07,084 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:53:07,084 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:53:07,084 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:53:07,084 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:53:07,215 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 15:53:07,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 15:53:07,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-16 15:53:07,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 15:53:07,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:07,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:07,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:07,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:07,457 INFO L321 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-16 15:53:07,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-16 15:53:07,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 137 [2022-11-16 15:53:07,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:07,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 66 [2022-11-16 15:53:07,706 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:07,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:07,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-16 15:53:07,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:07,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:07,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:07,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:07,856 INFO L321 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-16 15:53:07,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 199 [2022-11-16 15:53:07,905 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 15:53:07,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 155 [2022-11-16 15:53:07,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:07,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 88 [2022-11-16 15:53:07,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:07,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:07,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:07,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 63 [2022-11-16 15:53:07,965 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:07,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 145 treesize of output 122 [2022-11-16 15:53:08,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:08,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:08,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:08,023 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:08,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-16 15:53:08,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:08,050 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:08,455 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '865#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 5 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 5 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 15:53:08,455 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:08,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:53:08,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2022-11-16 15:53:08,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98797058] [2022-11-16 15:53:08,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:08,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-16 15:53:08,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:08,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-16 15:53:08,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=555, Unknown=2, NotChecked=102, Total=812 [2022-11-16 15:53:08,457 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 24 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:12,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:12,073 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-11-16 15:53:12,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-16 15:53:12,074 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-16 15:53:12,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:12,075 INFO L225 Difference]: With dead ends: 41 [2022-11-16 15:53:12,075 INFO L226 Difference]: Without dead ends: 39 [2022-11-16 15:53:12,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=274, Invalid=1214, Unknown=2, NotChecked=150, Total=1640 [2022-11-16 15:53:12,076 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 19 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 47 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:12,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 79 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 204 Invalid, 0 Unknown, 47 Unchecked, 0.4s Time] [2022-11-16 15:53:12,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-16 15:53:12,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 26. [2022-11-16 15:53:12,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 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 15:53:12,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-11-16 15:53:12,087 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 13 [2022-11-16 15:53:12,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:12,087 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-16 15:53:12,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:12,088 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-16 15:53:12,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 15:53:12,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:12,088 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:12,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 15:53:12,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-16 15:53:12,295 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:53:12,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:12,295 INFO L85 PathProgramCache]: Analyzing trace with hash 221349744, now seen corresponding path program 1 times [2022-11-16 15:53:12,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:12,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779082706] [2022-11-16 15:53:12,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:12,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:12,318 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:53:12,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598855927] [2022-11-16 15:53:12,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:12,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:12,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:12,320 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:53:12,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 15:53:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:12,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-16 15:53:12,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:53:12,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 15:53:12,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:12,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:12,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:12,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-16 15:53:12,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:12,748 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:12,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 32 [2022-11-16 15:53:12,910 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:53:12,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 34 [2022-11-16 15:53:12,926 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:12,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:53:13,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-16 15:53:15,357 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse6 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse1 (+ (* (mod .cse6 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ .cse7 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse3 (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (= |c_ULTIMATE.start_main_~i~0#1| 0))) (and (or (= (select (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse0 .cse1 (+ (select .cse0 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)))) .cse4) 11) (not .cse5)) (or (and (forall ((v_ArrVal_307 (Array Int Int))) (= (select (store v_ArrVal_307 .cse1 (+ (select v_ArrVal_307 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_307) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) .cse4) 11)) (not (= .cse6 0))) .cse5)))) is different from false [2022-11-16 15:53:15,839 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:15,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 47 [2022-11-16 15:53:15,855 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:15,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2022-11-16 15:53:15,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 104 [2022-11-16 15:53:15,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 15:53:15,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 55 [2022-11-16 15:53:15,959 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-16 15:53:15,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:15,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779082706] [2022-11-16 15:53:15,960 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:53:15,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598855927] [2022-11-16 15:53:15,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598855927] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:53:15,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [200474476] [2022-11-16 15:53:15,962 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-16 15:53:15,962 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:53:15,962 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:53:15,963 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:53:15,963 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:53:16,100 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-16 15:53:16,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-16 15:53:16,253 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 15:53:16,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 15:53:16,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 15:53:16,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:16,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:16,421 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:16,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:16,495 INFO L321 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-16 15:53:16,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-16 15:53:16,632 INFO L321 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-16 15:53:16,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 453 treesize of output 440 [2022-11-16 15:53:16,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:16,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 63 [2022-11-16 15:53:16,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:16,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:16,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-16 15:53:16,822 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:16,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:16,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:16,873 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:16,942 INFO L321 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-16 15:53:16,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 196 [2022-11-16 15:53:17,001 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 15:53:17,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 155 [2022-11-16 15:53:17,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 88 [2022-11-16 15:53:17,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:17,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 63 [2022-11-16 15:53:17,073 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:17,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 145 treesize of output 122 [2022-11-16 15:53:17,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:17,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:17,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:17,137 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:17,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-16 15:53:17,302 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:17,797 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1097#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 15:53:17,797 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:17,797 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:53:17,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2022-11-16 15:53:17,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225641525] [2022-11-16 15:53:17,797 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:17,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 15:53:17,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:17,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 15:53:17,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=476, Unknown=2, NotChecked=44, Total=600 [2022-11-16 15:53:17,799 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 20 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 15:53:18,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:18,453 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-11-16 15:53:18,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 15:53:18,453 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.3) internal successors, (26), 20 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) Word has length 14 [2022-11-16 15:53:18,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:18,454 INFO L225 Difference]: With dead ends: 34 [2022-11-16 15:53:18,454 INFO L226 Difference]: Without dead ends: 24 [2022-11-16 15:53:18,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=127, Invalid=631, Unknown=2, NotChecked=52, Total=812 [2022-11-16 15:53:18,455 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:18,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 34 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 127 Invalid, 0 Unknown, 34 Unchecked, 0.4s Time] [2022-11-16 15:53:18,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-16 15:53:18,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2022-11-16 15:53:18,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 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 15:53:18,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-16 15:53:18,475 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 14 [2022-11-16 15:53:18,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:18,475 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-16 15:53:18,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.3) internal successors, (26), 20 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 15:53:18,476 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-16 15:53:18,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 15:53:18,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:18,477 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:18,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 15:53:18,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:18,683 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:53:18,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:18,684 INFO L85 PathProgramCache]: Analyzing trace with hash -211311242, now seen corresponding path program 6 times [2022-11-16 15:53:18,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:18,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779860724] [2022-11-16 15:53:18,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:18,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:18,728 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:53:18,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185887980] [2022-11-16 15:53:18,738 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 15:53:18,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:18,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:18,743 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:53:18,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 15:53:18,834 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 15:53:18,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:53:18,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 15:53:18,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:53:18,916 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:18,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:53:18,990 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:18,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:18,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779860724] [2022-11-16 15:53:18,991 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:53:18,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185887980] [2022-11-16 15:53:18,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185887980] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:53:18,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [826571400] [2022-11-16 15:53:18,993 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-16 15:53:18,993 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:53:18,993 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:53:18,994 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:53:18,994 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:53:19,144 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-16 15:53:19,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-16 15:53:19,279 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 15:53:19,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 15:53:19,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 15:53:19,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,530 INFO L321 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-16 15:53:19,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-16 15:53:19,644 INFO L321 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-16 15:53:19,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 453 treesize of output 434 [2022-11-16 15:53:19,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 36 [2022-11-16 15:53:19,767 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:19,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-16 15:53:19,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:19,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:19,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:19,914 INFO L321 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-16 15:53:19,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 199 [2022-11-16 15:53:19,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 145 [2022-11-16 15:53:19,970 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:19,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 145 treesize of output 122 [2022-11-16 15:53:20,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:20,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:20,052 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:20,057 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:20,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-16 15:53:20,078 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:20,435 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1292#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 5 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 5 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 15:53:20,435 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:20,435 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:53:20,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2022-11-16 15:53:20,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398748382] [2022-11-16 15:53:20,436 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:20,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 15:53:20,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:20,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 15:53:20,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2022-11-16 15:53:20,437 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:20,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:20,762 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2022-11-16 15:53:20,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 15:53:20,762 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-16 15:53:20,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:20,763 INFO L225 Difference]: With dead ends: 68 [2022-11-16 15:53:20,763 INFO L226 Difference]: Without dead ends: 60 [2022-11-16 15:53:20,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2022-11-16 15:53:20,764 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 78 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:20,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 56 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 15:53:20,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-16 15:53:20,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 31. [2022-11-16 15:53:20,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:20,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-11-16 15:53:20,775 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 14 [2022-11-16 15:53:20,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:20,775 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-11-16 15:53:20,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:20,775 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-11-16 15:53:20,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 15:53:20,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:20,776 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:20,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 15:53:20,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:20,977 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:53:20,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:20,977 INFO L85 PathProgramCache]: Analyzing trace with hash -149523490, now seen corresponding path program 2 times [2022-11-16 15:53:20,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:20,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319044899] [2022-11-16 15:53:20,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:20,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:20,997 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:53:20,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757983980] [2022-11-16 15:53:20,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 15:53:20,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:20,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:20,999 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:53:21,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 15:53:21,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 15:53:21,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:53:21,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 15:53:21,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:53:21,408 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:53:21,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:53:21,465 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:53:21,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:21,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319044899] [2022-11-16 15:53:21,465 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:53:21,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757983980] [2022-11-16 15:53:21,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757983980] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:53:21,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [976653084] [2022-11-16 15:53:21,467 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-16 15:53:21,468 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:53:21,468 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:53:21,468 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:53:21,468 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:53:21,614 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 15:53:21,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 15:53:21,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-16 15:53:21,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 15:53:21,747 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:21,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:21,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:21,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:21,843 INFO L321 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-16 15:53:21,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-16 15:53:21,982 INFO L321 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-16 15:53:21,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 401 treesize of output 388 [2022-11-16 15:53:22,024 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:22,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34 [2022-11-16 15:53:22,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:22,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-16 15:53:22,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:22,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:22,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:22,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:22,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:22,242 INFO L321 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-16 15:53:22,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 199 [2022-11-16 15:53:22,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 90 [2022-11-16 15:53:22,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:22,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 63 [2022-11-16 15:53:22,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:22,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:22,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:22,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:22,359 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:22,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-16 15:53:22,442 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:22,764 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1550#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 15:53:22,764 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:22,765 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:53:22,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-16 15:53:22,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319671304] [2022-11-16 15:53:22,765 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:22,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 15:53:22,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:22,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 15:53:22,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-11-16 15:53:22,766 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 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 15:53:23,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:23,047 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2022-11-16 15:53:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 15:53:23,047 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-16 15:53:23,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:23,048 INFO L225 Difference]: With dead ends: 51 [2022-11-16 15:53:23,048 INFO L226 Difference]: Without dead ends: 44 [2022-11-16 15:53:23,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 9 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2022-11-16 15:53:23,049 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 53 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:23,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 33 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 15:53:23,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-16 15:53:23,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 29. [2022-11-16 15:53:23,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:23,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-16 15:53:23,060 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 15 [2022-11-16 15:53:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:23,060 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-16 15:53:23,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 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 15:53:23,060 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-11-16 15:53:23,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 15:53:23,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:23,061 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:23,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 15:53:23,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 15:53:23,261 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:53:23,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:23,262 INFO L85 PathProgramCache]: Analyzing trace with hash -582184476, now seen corresponding path program 7 times [2022-11-16 15:53:23,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:23,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091789421] [2022-11-16 15:53:23,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:23,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:23,288 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:53:23,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885333560] [2022-11-16 15:53:23,288 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 15:53:23,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:23,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:23,290 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:53:23,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 15:53:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:24,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-16 15:53:24,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:53:24,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:24,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:24,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:24,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:24,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:24,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:24,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:24,293 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:53:24,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:53:24,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 15:53:24,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 178 [2022-11-16 15:53:25,159 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:25,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-11-16 15:53:25,174 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:25,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2022-11-16 15:53:25,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-16 15:53:25,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 382 treesize of output 378 [2022-11-16 15:53:25,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-16 15:53:25,331 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-16 15:53:25,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:25,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091789421] [2022-11-16 15:53:25,331 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:53:25,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885333560] [2022-11-16 15:53:25,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885333560] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:53:25,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [448110290] [2022-11-16 15:53:25,333 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-16 15:53:25,333 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:53:25,333 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:53:25,334 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:53:25,334 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:53:25,463 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-16 15:53:25,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-16 15:53:25,605 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 15:53:25,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 15:53:25,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 15:53:25,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:25,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,808 INFO L321 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-16 15:53:25,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-16 15:53:25,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 127 [2022-11-16 15:53:25,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:25,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 63 [2022-11-16 15:53:26,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:26,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-16 15:53:26,011 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:26,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:26,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:26,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:26,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:26,081 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:26,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-16 15:53:26,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:26,103 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:26,496 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1791#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 5 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 5 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 15:53:26,496 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:26,496 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:53:26,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2022-11-16 15:53:26,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609693143] [2022-11-16 15:53:26,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:26,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 15:53:26,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:26,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 15:53:26,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2022-11-16 15:53:26,498 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:27,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:27,172 INFO L93 Difference]: Finished difference Result 72 states and 80 transitions. [2022-11-16 15:53:27,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-16 15:53:27,173 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-16 15:53:27,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:27,174 INFO L225 Difference]: With dead ends: 72 [2022-11-16 15:53:27,174 INFO L226 Difference]: Without dead ends: 70 [2022-11-16 15:53:27,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=230, Invalid=1030, Unknown=0, NotChecked=0, Total=1260 [2022-11-16 15:53:27,175 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 92 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:27,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 125 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 208 Invalid, 0 Unknown, 51 Unchecked, 0.4s Time] [2022-11-16 15:53:27,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-16 15:53:27,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 34. [2022-11-16 15:53:27,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:27,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2022-11-16 15:53:27,187 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 15 [2022-11-16 15:53:27,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:27,187 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2022-11-16 15:53:27,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:27,188 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2022-11-16 15:53:27,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 15:53:27,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:27,188 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:27,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 15:53:27,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-16 15:53:27,394 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:53:27,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:27,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1236512951, now seen corresponding path program 3 times [2022-11-16 15:53:27,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:27,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853821550] [2022-11-16 15:53:27,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:27,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:27,423 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:53:27,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1566854928] [2022-11-16 15:53:27,424 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 15:53:27,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:27,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:27,425 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:53:27,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 15:53:27,847 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 15:53:27,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:53:27,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-16 15:53:27,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:53:27,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 15:53:27,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:27,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:27,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:27,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:27,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:28,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-16 15:53:28,071 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-16 15:53:28,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 147 treesize of output 135 [2022-11-16 15:53:28,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:28,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:28,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:28,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:28,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:28,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 210 [2022-11-16 15:53:28,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:28,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:28,166 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:28,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 44 [2022-11-16 15:53:28,306 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:28,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:53:28,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-16 15:53:29,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-11-16 15:53:29,565 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse8 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8))) (let ((.cse6 (= |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse1 (+ (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse3 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (+ (* 8 (mod .cse7 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or (forall ((v_ArrVal_591 Int)) (= (select (store (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse0 .cse1 (+ (select .cse0 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)))) .cse4 v_ArrVal_591) .cse5) 11)) (not .cse6)) (or .cse6 (and (not (= .cse7 0)) (forall ((v_ArrVal_591 Int) (v_ArrVal_586 (Array Int Int))) (= (select (store (store v_ArrVal_586 .cse1 (+ (select v_ArrVal_586 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_586) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) .cse4 v_ArrVal_591) .cse5) 11))))))) is different from false [2022-11-16 15:53:30,029 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:30,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 36 [2022-11-16 15:53:30,349 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:30,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 47 [2022-11-16 15:53:30,377 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:30,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2022-11-16 15:53:30,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 346 treesize of output 332 [2022-11-16 15:53:30,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 125 [2022-11-16 15:53:30,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 227 [2022-11-16 15:53:30,592 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-16 15:53:30,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:30,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853821550] [2022-11-16 15:53:30,593 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:53:30,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566854928] [2022-11-16 15:53:30,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566854928] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:53:30,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [126705600] [2022-11-16 15:53:30,595 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-16 15:53:30,595 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:53:30,596 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:53:30,596 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:53:30,596 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:53:30,760 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 15:53:30,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 15:53:30,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-16 15:53:30,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 15:53:30,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:30,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:30,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:30,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:30,999 INFO L321 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-16 15:53:31,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-16 15:53:31,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 82 [2022-11-16 15:53:31,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:31,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 36 [2022-11-16 15:53:31,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:31,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-16 15:53:31,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:31,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:31,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:31,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:31,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:31,371 INFO L321 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-16 15:53:31,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 196 [2022-11-16 15:53:31,439 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 15:53:31,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 155 [2022-11-16 15:53:31,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:31,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 88 [2022-11-16 15:53:31,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:31,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:31,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 63 [2022-11-16 15:53:31,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:31,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 93 [2022-11-16 15:53:31,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:31,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:31,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:31,533 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:31,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-16 15:53:31,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:31,663 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:32,296 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2093#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 15:53:32,296 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:32,296 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:53:32,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2022-11-16 15:53:32,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048622466] [2022-11-16 15:53:32,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:32,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-16 15:53:32,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:32,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-16 15:53:32,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=712, Unknown=1, NotChecked=54, Total=870 [2022-11-16 15:53:32,298 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 24 states, 24 states have (on average 1.25) internal successors, (30), 24 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 15:53:32,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:32,753 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2022-11-16 15:53:32,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 15:53:32,753 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-16 15:53:32,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:32,754 INFO L225 Difference]: With dead ends: 51 [2022-11-16 15:53:32,754 INFO L226 Difference]: Without dead ends: 49 [2022-11-16 15:53:32,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=139, Invalid=920, Unknown=1, NotChecked=62, Total=1122 [2022-11-16 15:53:32,755 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:32,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 59 Invalid, 0 Unknown, 43 Unchecked, 0.2s Time] [2022-11-16 15:53:32,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-16 15:53:32,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2022-11-16 15:53:32,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.255813953488372) internal successors, (54), 43 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:32,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2022-11-16 15:53:32,771 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 16 [2022-11-16 15:53:32,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:32,772 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2022-11-16 15:53:32,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.25) internal successors, (30), 24 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 15:53:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2022-11-16 15:53:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 15:53:32,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:32,773 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:32,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-16 15:53:32,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 15:53:32,979 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:53:32,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:32,979 INFO L85 PathProgramCache]: Analyzing trace with hash -774659120, now seen corresponding path program 4 times [2022-11-16 15:53:32,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:32,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378931273] [2022-11-16 15:53:32,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:32,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:33,003 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:53:33,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291888706] [2022-11-16 15:53:33,003 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 15:53:33,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:53:33,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:33,005 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:53:33,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-16 15:53:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:33,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-16 15:53:33,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:53:33,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 15:53:33,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:33,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:33,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 15:53:33,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:33,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:33,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-16 15:53:33,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:33,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:33,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:33,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 48 [2022-11-16 15:53:34,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 55 [2022-11-16 15:53:34,185 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-16 15:53:34,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 164 [2022-11-16 15:53:34,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:34,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 213 [2022-11-16 15:53:34,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 124 [2022-11-16 15:53:34,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:34,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:34,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,366 INFO L321 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2022-11-16 15:53:34,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 85 treesize of output 77 [2022-11-16 15:53:34,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:34,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:34,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:34,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:34,457 INFO L321 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-11-16 15:53:34,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 112 treesize of output 93 [2022-11-16 15:53:34,739 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-16 15:53:34,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 96 treesize of output 48 [2022-11-16 15:53:34,768 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:34,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:53:35,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-16 15:53:35,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-11-16 15:53:42,292 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse15 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse17 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse16 (+ 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse14 (* .cse17 8)) (.cse23 (* (mod .cse15 4294967296) 8))) (let ((.cse2 (+ (* 8 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse3 (+ .cse23 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (+ .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse8 (+ .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (+ .cse14 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (+ (* (mod .cse16 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse18 (= |c_ULTIMATE.start_main_~i~0#1| 0))) (and (or (let ((.cse0 (<= .cse17 2147483647))) (and (or (not .cse0) (forall ((v_ArrVal_692 Int) (v_ArrVal_684 (Array Int Int))) (= (select (store (let ((.cse4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_684) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8)) (.cse5 (select v_ArrVal_684 .cse7))) (let ((.cse1 (store v_ArrVal_684 .cse6 (+ .cse4 .cse5)))) (store .cse1 .cse2 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3) .cse4 .cse5)))) .cse9 v_ArrVal_692) .cse10) 11))) (or (and (forall ((v_ArrVal_692 Int) (v_ArrVal_684 (Array Int Int))) (= (select (store (let ((.cse12 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_684) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse14 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (.cse13 (select v_ArrVal_684 (+ .cse14 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))) (let ((.cse11 (store v_ArrVal_684 .cse6 (+ .cse12 .cse13)))) (store .cse11 .cse2 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse11) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3) .cse12 .cse13)))) .cse9 v_ArrVal_692) .cse10) 11)) (not (= .cse15 0)) (not (= .cse16 0))) .cse0))) .cse18) (or (forall ((v_ArrVal_692 Int)) (= (select (store (let ((.cse22 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (let ((.cse20 (select .cse22 .cse7)) (.cse21 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse22) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (let ((.cse19 (store .cse22 .cse6 (+ .cse20 .cse21)))) (store .cse19 .cse2 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3) .cse20 .cse21))))) .cse9 v_ArrVal_692) .cse10) 11)) (not .cse18)))))) is different from false [2022-11-16 15:53:43,939 INFO L321 Elim1Store]: treesize reduction 41, result has 39.7 percent of original size [2022-11-16 15:53:43,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 54 [2022-11-16 15:53:47,971 INFO L321 Elim1Store]: treesize reduction 47, result has 48.4 percent of original size [2022-11-16 15:53:47,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 71 [2022-11-16 15:53:53,660 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:53,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 47 [2022-11-16 15:53:53,670 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:53,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2022-11-16 15:53:53,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9256 treesize of output 9048 [2022-11-16 15:53:53,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 222 [2022-11-16 15:53:54,115 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:53:54,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 576 treesize of output 521 [2022-11-16 15:53:54,220 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-11-16 15:53:54,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:54,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378931273] [2022-11-16 15:53:54,221 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:53:54,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291888706] [2022-11-16 15:53:54,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291888706] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:53:54,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [210335845] [2022-11-16 15:53:54,223 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-16 15:53:54,223 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:53:54,223 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:53:54,223 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:53:54,224 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:53:54,360 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 15:53:54,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 15:53:54,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-16 15:53:54,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 15:53:54,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:54,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:54,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:54,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:54,558 INFO L321 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-16 15:53:54,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-16 15:53:54,672 INFO L321 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-16 15:53:54,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 453 treesize of output 438 [2022-11-16 15:53:54,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:54,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 36 [2022-11-16 15:53:54,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:54,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-16 15:53:54,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:54,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:54,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:54,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:53:54,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:53:54,891 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:53:54,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-16 15:53:54,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:53:55,036 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:53:55,780 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2393#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 15:53:55,781 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:53:55,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:53:55,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2022-11-16 15:53:55,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729671105] [2022-11-16 15:53:55,781 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:53:55,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-16 15:53:55,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:55,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-16 15:53:55,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=856, Unknown=16, NotChecked=60, Total=1056 [2022-11-16 15:53:55,782 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:54:05,302 WARN L233 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 95 DAG size of output: 73 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:54:06,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:54:06,851 INFO L93 Difference]: Finished difference Result 80 states and 98 transitions. [2022-11-16 15:54:06,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-16 15:54:06,852 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-16 15:54:06,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:54:06,852 INFO L225 Difference]: With dead ends: 80 [2022-11-16 15:54:06,852 INFO L226 Difference]: Without dead ends: 78 [2022-11-16 15:54:06,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 28.5s TimeCoverageRelationStatistics Valid=177, Invalid=1370, Unknown=17, NotChecked=76, Total=1640 [2022-11-16 15:54:06,854 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 116 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:54:06,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 56 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 116 Unchecked, 0.2s Time] [2022-11-16 15:54:06,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-16 15:54:06,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 57. [2022-11-16 15:54:06,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 56 states have internal predecessors, (74), 0 states have call successors, (0), 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 15:54:06,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2022-11-16 15:54:06,880 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 74 transitions. Word has length 18 [2022-11-16 15:54:06,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:54:06,880 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 74 transitions. [2022-11-16 15:54:06,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:54:06,881 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 74 transitions. [2022-11-16 15:54:06,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 15:54:06,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:06,881 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:54:06,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-16 15:54:07,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 15:54:07,088 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:54:07,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:07,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1425021295, now seen corresponding path program 8 times [2022-11-16 15:54:07,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:07,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27312813] [2022-11-16 15:54:07,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:07,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:07,142 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:54:07,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [664103371] [2022-11-16 15:54:07,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 15:54:07,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:54:07,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:54:07,144 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:54:07,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-16 15:54:08,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-16 15:54:08,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:54:08,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 15:54:08,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:54:08,790 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:54:08,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:54:08,945 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:54:08,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:54:08,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27312813] [2022-11-16 15:54:08,945 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 15:54:08,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664103371] [2022-11-16 15:54:08,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664103371] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:54:08,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [537212222] [2022-11-16 15:54:08,947 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-16 15:54:08,948 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:54:08,948 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:54:08,948 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:54:08,948 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:54:09,070 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-16 15:54:09,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 15:54:09,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-16 15:54:09,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 15:54:09,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:09,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:09,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:09,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:09,278 INFO L321 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-16 15:54:09,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-16 15:54:09,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:09,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 77 [2022-11-16 15:54:09,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:09,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 36 [2022-11-16 15:54:09,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:09,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2022-11-16 15:54:09,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:54:09,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:54:09,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:09,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:09,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:09,639 INFO L321 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-16 15:54:09,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 199 [2022-11-16 15:54:09,703 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-16 15:54:09,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 155 [2022-11-16 15:54:09,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:09,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 88 [2022-11-16 15:54:09,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:09,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:09,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 63 [2022-11-16 15:54:09,760 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:54:09,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 145 treesize of output 122 [2022-11-16 15:54:09,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:09,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:09,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:09,814 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 15:54:09,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2022-11-16 15:54:09,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:54:09,837 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:54:10,203 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2770#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 5 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 5 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-16 15:54:10,203 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:54:10,203 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 15:54:10,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 23 [2022-11-16 15:54:10,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041151154] [2022-11-16 15:54:10,203 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 15:54:10,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 15:54:10,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:54:10,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 15:54:10,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=574, Unknown=0, NotChecked=0, Total=756 [2022-11-16 15:54:10,205 INFO L87 Difference]: Start difference. First operand 57 states and 74 transitions. Second operand has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 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 15:54:11,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:54:11,080 INFO L93 Difference]: Finished difference Result 188 states and 210 transitions. [2022-11-16 15:54:11,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 15:54:11,081 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-16 15:54:11,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:54:11,082 INFO L225 Difference]: With dead ends: 188 [2022-11-16 15:54:11,083 INFO L226 Difference]: Without dead ends: 168 [2022-11-16 15:54:11,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=524, Invalid=1926, Unknown=0, NotChecked=0, Total=2450 [2022-11-16 15:54:11,084 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 309 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 15:54:11,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 110 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 15:54:11,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-16 15:54:11,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 76. [2022-11-16 15:54:11,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.28) internal successors, (96), 75 states have internal predecessors, (96), 0 states have call successors, (0), 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 15:54:11,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 96 transitions. [2022-11-16 15:54:11,129 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 96 transitions. Word has length 18 [2022-11-16 15:54:11,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:54:11,129 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 96 transitions. [2022-11-16 15:54:11,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 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 15:54:11,129 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2022-11-16 15:54:11,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 15:54:11,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:54:11,130 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-16 15:54:11,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-16 15:54:11,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 15:54:11,334 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:54:11,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:54:11,335 INFO L85 PathProgramCache]: Analyzing trace with hash -972050403, now seen corresponding path program 5 times [2022-11-16 15:54:11,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:54:11,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279702402] [2022-11-16 15:54:11,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:54:11,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:54:11,353 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 15:54:11,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1695265979] [2022-11-16 15:54:11,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 15:54:11,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:54:11,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:54:11,365 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:54:11,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c17287-f644-484b-93ed-c8ef34ec8157/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-16 15:54:11,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 15:54:11,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:54:11,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-16 15:54:11,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:54:12,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-16 15:54:12,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 15:54:12,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:12,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2022-11-16 15:54:12,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:12,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:12,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-11-16 15:54:12,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:12,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2022-11-16 15:54:12,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:12,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:12,364 INFO L321 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2022-11-16 15:54:12,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 53 treesize of output 46 [2022-11-16 15:54:12,539 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-16 15:54:12,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 177 treesize of output 174 [2022-11-16 15:54:12,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:12,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:12,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:12,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:12,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:12,600 INFO L321 Elim1Store]: treesize reduction 86, result has 1.1 percent of original size [2022-11-16 15:54:12,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 127 treesize of output 209 [2022-11-16 15:54:12,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-16 15:54:12,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:12,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:12,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 118 [2022-11-16 15:54:13,181 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 15:54:19,791 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 15:54:19,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 174 treesize of output 154 [2022-11-16 15:54:19,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:19,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:19,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:19,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:19,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:19,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:19,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:54:19,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:19,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 34 [2022-11-16 15:54:19,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:54:19,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2022-11-16 15:54:19,875 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:54:19,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:54:37,206 WARN L233 SmtUtils]: Spent 10.23s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:54:38,985 WARN L833 $PredicateComparison]: unable to prove that (or (not (< 2 c_~N~0)) (let ((.cse44 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse42 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse25 (<= .cse44 2147483647)) (.cse43 (* .cse44 8))) (let ((.cse24 (+ .cse43 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse0 (not .cse25)) (.cse5 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse6 (+ c_~N~0 4294967295)) (.cse8 (+ c_~N~0 4294967294)) (.cse12 (+ .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse11 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse26 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse27 (* 8 .cse42)) (.cse28 (<= .cse42 2147483647))) (and (or (let ((.cse13 (+ (select .cse26 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse27)) (select .cse11 (+ (- 34359738368) .cse27 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or .cse0 (let ((.cse1 (= |c_ULTIMATE.start_main_~i~0#1| 0))) (and (or .cse1 (let ((.cse2 (store .cse11 .cse12 .cse13))) (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse7 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (store .cse2 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse4 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse3 (+ .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse2 (+ .cse4 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse7) (< .cse7 .cse8)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse9 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse6 .cse9) (< .cse9 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= (select (store .cse2 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse10 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse3 (+ .cse10 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse2 (+ .cse10 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31)))))))) (or (not .cse1) (and (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse15 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 31 (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse14 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select v_ArrVal_865 (+ .cse14 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse6 .cse15) (< .cse15 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse16 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse16) (< .cse16 .cse8) (= (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse17 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select v_ArrVal_865 (+ .cse17 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31))))))))) (or (let ((.cse19 (store .cse11 .cse24 .cse13))) (let ((.cse20 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse18 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse18) (< .cse18 .cse8) (= 31 (select (store .cse19 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse21 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse20 (+ .cse21 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse19 (+ .cse21 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse22 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse6 .cse22) (< .cse22 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= (select (store .cse19 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse23 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse20 (+ .cse23 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse19 (+ .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31))))))) .cse25))) .cse28) (or (let ((.cse35 (+ (select .cse11 (+ .cse27 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse26 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse27))))) (and (or .cse25 (let ((.cse30 (store .cse11 .cse24 .cse35))) (let ((.cse31 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse30) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse29 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse29) (< .cse29 .cse8) (= (select (store .cse30 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse32 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse31 (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse30 (+ .cse32 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse34 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= (select (store .cse30 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse33 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse31 (+ .cse33 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse30 (+ .cse33 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31) (<= .cse6 .cse34) (< .cse34 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))))) (or .cse0 (let ((.cse37 (store .cse11 .cse12 .cse35))) (let ((.cse38 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse37) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse36 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse36) (< .cse36 .cse8) (= (select (store .cse37 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse39 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse38 (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse37 (+ .cse39 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse41 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (store .cse37 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse40 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse37 (+ .cse40 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse38 (+ .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse5) 31) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse6 .cse41) (< .cse41 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))))))) (not .cse28))))))) is different from false [2022-11-16 15:54:40,998 WARN L855 $PredicateComparison]: unable to prove that (or (not (< 2 c_~N~0)) (let ((.cse44 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse42 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse25 (<= .cse44 2147483647)) (.cse43 (* .cse44 8))) (let ((.cse24 (+ .cse43 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse0 (not .cse25)) (.cse5 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse6 (+ c_~N~0 4294967295)) (.cse8 (+ c_~N~0 4294967294)) (.cse12 (+ .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse11 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse26 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse27 (* 8 .cse42)) (.cse28 (<= .cse42 2147483647))) (and (or (let ((.cse13 (+ (select .cse26 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse27)) (select .cse11 (+ (- 34359738368) .cse27 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or .cse0 (let ((.cse1 (= |c_ULTIMATE.start_main_~i~0#1| 0))) (and (or .cse1 (let ((.cse2 (store .cse11 .cse12 .cse13))) (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse7 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (store .cse2 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse4 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse3 (+ .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse2 (+ .cse4 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse7) (< .cse7 .cse8)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse9 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse6 .cse9) (< .cse9 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= (select (store .cse2 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse10 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse3 (+ .cse10 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse2 (+ .cse10 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31)))))))) (or (not .cse1) (and (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse15 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 31 (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse14 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select v_ArrVal_865 (+ .cse14 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse6 .cse15) (< .cse15 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse16 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse16) (< .cse16 .cse8) (= (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse17 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select v_ArrVal_865 (+ .cse17 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31))))))))) (or (let ((.cse19 (store .cse11 .cse24 .cse13))) (let ((.cse20 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse18 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse18) (< .cse18 .cse8) (= 31 (select (store .cse19 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse21 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse20 (+ .cse21 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse19 (+ .cse21 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse22 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse6 .cse22) (< .cse22 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= (select (store .cse19 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse23 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse20 (+ .cse23 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse19 (+ .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31))))))) .cse25))) .cse28) (or (let ((.cse35 (+ (select .cse11 (+ .cse27 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse26 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse27))))) (and (or .cse25 (let ((.cse30 (store .cse11 .cse24 .cse35))) (let ((.cse31 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse30) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse29 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse29) (< .cse29 .cse8) (= (select (store .cse30 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse32 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse31 (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse30 (+ .cse32 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse34 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= (select (store .cse30 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse33 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse31 (+ .cse33 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse30 (+ .cse33 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31) (<= .cse6 .cse34) (< .cse34 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))))) (or .cse0 (let ((.cse37 (store .cse11 .cse12 .cse35))) (let ((.cse38 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse37) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse36 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse6 .cse36) (< .cse36 .cse8) (= (select (store .cse37 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse39 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse38 (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse37 (+ .cse39 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse5) 31)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse41 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (store .cse37 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse40 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse37 (+ .cse40 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse38 (+ .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse5) 31) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse6 .cse41) (< .cse41 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))))))) (not .cse28))))))) is different from true [2022-11-16 15:54:43,410 WARN L833 $PredicateComparison]: unable to prove that (or (not (< 2 c_~N~0)) (let ((.cse49 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse52 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse53 (mod .cse49 4294967296))) (let ((.cse51 (* .cse53 8)) (.cse50 (* .cse52 8))) (let ((.cse13 (= |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse12 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse11 (+ .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ .cse51 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse4 (+ c_~N~0 4294967295)) (.cse6 (+ c_~N~0 4294967294)) (.cse3 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or (let ((.cse0 (let ((.cse9 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse9 .cse10 (+ (select .cse9 .cse11) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12)))))) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse5 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (store .cse0 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse1 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse2 (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse3) 31) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse5) (< .cse5 .cse6) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse8 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (= 31 (select (store .cse0 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse7 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse2 (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse0 (+ .cse7 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse3)) (<= .cse4 .cse8) (< .cse8 .cse6))))))) (not .cse13)) (or .cse13 (let ((.cse22 (<= .cse53 2147483647))) (let ((.cse14 (<= .cse52 2147483647)) (.cse26 (+ .cse51 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse15 (not .cse22))) (and (or (not .cse14) (and (or .cse15 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse18 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= (select (let ((.cse16 (store v_ArrVal_862 .cse10 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12) (select v_ArrVal_862 .cse11))))) (store .cse16 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse17 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse16) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse16 (+ .cse17 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse3) 31) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse18) (< .cse18 .cse6)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse19 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse19) (< .cse19 .cse6) (= (select (let ((.cse20 (store v_ArrVal_862 .cse10 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12) (select v_ArrVal_862 .cse11))))) (store .cse20 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse21 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse20) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse20 (+ .cse21 |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse3) 31) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))) (or .cse22 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse23 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse23) (< .cse23 .cse6) (= (select (let ((.cse24 (store v_ArrVal_862 .cse26 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12) (select v_ArrVal_862 .cse11))))) (store .cse24 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse25 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse24 (+ .cse25 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse24) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse25 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))))) .cse3) 31)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse27 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse27) (< .cse27 .cse6) (= 31 (select (let ((.cse28 (store v_ArrVal_862 .cse26 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12) (select v_ArrVal_862 .cse11))))) (store .cse28 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse29 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse28) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse28 (+ .cse29 |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse3)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))))) (or .cse14 (let ((.cse32 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse33 (+ .cse50 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or .cse22 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse34 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (let ((.cse30 (store v_ArrVal_862 .cse26 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse32) (select v_ArrVal_862 .cse33))))) (store .cse30 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse31 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse30) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse31 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse30 (+ .cse31 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse3) 31) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse34) (< .cse34 .cse6)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse35 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse35) (= 31 (select (let ((.cse36 (store v_ArrVal_862 .cse26 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse32) (select v_ArrVal_862 .cse33))))) (store .cse36 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse37 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse36 (+ .cse37 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse36) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse37 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) .cse3)) (< .cse35 .cse6) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))) (or .cse15 (let ((.cse44 (= .cse49 0))) (and (or (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse40 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (let ((.cse38 (store v_ArrVal_862 .cse10 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse32) (select v_ArrVal_862 .cse33))))) (store .cse38 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse39 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse38) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse38 (+ .cse39 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse3) 31) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse40) (< .cse40 .cse6)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse41 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse41) (= (select (let ((.cse42 (store v_ArrVal_862 .cse10 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse32) (select v_ArrVal_862 .cse33))))) (store .cse42 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse43 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse42 (+ .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse42) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse43 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) .cse3) 31) (< .cse41 .cse6) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))) .cse44) (or (not .cse44) (and (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse46 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 31 (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse45 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select v_ArrVal_865 (+ .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse3)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse46) (< .cse46 .cse6) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse47 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse47) (< .cse47 .cse6) (= (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse48 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse48 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select v_ArrVal_865 (+ .cse48 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse3) 31)))))))))))))))))))))) is different from false [2022-11-16 15:54:45,422 WARN L855 $PredicateComparison]: unable to prove that (or (not (< 2 c_~N~0)) (let ((.cse49 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse52 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse53 (mod .cse49 4294967296))) (let ((.cse51 (* .cse53 8)) (.cse50 (* .cse52 8))) (let ((.cse13 (= |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse12 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse11 (+ .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ .cse51 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse4 (+ c_~N~0 4294967295)) (.cse6 (+ c_~N~0 4294967294)) (.cse3 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or (let ((.cse0 (let ((.cse9 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse9 .cse10 (+ (select .cse9 .cse11) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12)))))) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse5 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (store .cse0 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse1 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse2 (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse3) 31) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse5) (< .cse5 .cse6) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse8 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (= 31 (select (store .cse0 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse7 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse2 (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse0 (+ .cse7 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse3)) (<= .cse4 .cse8) (< .cse8 .cse6))))))) (not .cse13)) (or .cse13 (let ((.cse22 (<= .cse53 2147483647))) (let ((.cse14 (<= .cse52 2147483647)) (.cse26 (+ .cse51 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse15 (not .cse22))) (and (or (not .cse14) (and (or .cse15 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse18 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= (select (let ((.cse16 (store v_ArrVal_862 .cse10 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12) (select v_ArrVal_862 .cse11))))) (store .cse16 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse17 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse16) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse16 (+ .cse17 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse3) 31) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse18) (< .cse18 .cse6)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse19 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse19) (< .cse19 .cse6) (= (select (let ((.cse20 (store v_ArrVal_862 .cse10 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12) (select v_ArrVal_862 .cse11))))) (store .cse20 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse21 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse20) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse20 (+ .cse21 |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse3) 31) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))) (or .cse22 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse23 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse23) (< .cse23 .cse6) (= (select (let ((.cse24 (store v_ArrVal_862 .cse26 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12) (select v_ArrVal_862 .cse11))))) (store .cse24 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse25 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse24 (+ .cse25 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse24) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse25 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))))) .cse3) 31)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse27 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse27) (< .cse27 .cse6) (= 31 (select (let ((.cse28 (store v_ArrVal_862 .cse26 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12) (select v_ArrVal_862 .cse11))))) (store .cse28 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse29 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse28) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse28 (+ .cse29 |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse3)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))))) (or .cse14 (let ((.cse32 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse33 (+ .cse50 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or .cse22 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse34 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (let ((.cse30 (store v_ArrVal_862 .cse26 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse32) (select v_ArrVal_862 .cse33))))) (store .cse30 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse31 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse30) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse31 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse30 (+ .cse31 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse3) 31) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse34) (< .cse34 .cse6)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse35 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse35) (= 31 (select (let ((.cse36 (store v_ArrVal_862 .cse26 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse32) (select v_ArrVal_862 .cse33))))) (store .cse36 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse37 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse36 (+ .cse37 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse36) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse37 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) .cse3)) (< .cse35 .cse6) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))) (or .cse15 (let ((.cse44 (= .cse49 0))) (and (or (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse40 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (let ((.cse38 (store v_ArrVal_862 .cse10 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse32) (select v_ArrVal_862 .cse33))))) (store .cse38 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse39 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse38) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse38 (+ .cse39 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse3) 31) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse40) (< .cse40 .cse6)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse41 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse41) (= (select (let ((.cse42 (store v_ArrVal_862 .cse10 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse32) (select v_ArrVal_862 .cse33))))) (store .cse42 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse43 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse42 (+ .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse42) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse43 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) .cse3) 31) (< .cse41 .cse6) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))) .cse44) (or (not .cse44) (and (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse46 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 31 (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse45 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select v_ArrVal_865 (+ .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse3)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse46) (< .cse46 .cse6) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse47 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse47) (< .cse47 .cse6) (= (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse48 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse48 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select v_ArrVal_865 (+ .cse48 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse3) 31)))))))))))))))))))))) is different from true [2022-11-16 15:55:00,395 WARN L233 SmtUtils]: Spent 10.30s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:55:39,401 WARN L233 SmtUtils]: Spent 29.89s on a formula simplification that was a NOOP. DAG size: 116 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 15:55:53,469 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (or (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (not (< 2 c_~N~0)) (not (< .cse0 c_~N~0)) (let ((.cse53 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse54 (mod .cse0 4294967296))) (let ((.cse24 (<= .cse54 2147483647)) (.cse52 (* .cse54 8)) (.cse51 (* .cse53 8)) (.cse14 (<= .cse53 2147483647)) (.cse50 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse32 (<= .cse50 2147483647)) (.cse15 (not .cse14)) (.cse30 (+ .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse23 (+ .cse52 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse16 (not .cse24)) (.cse11 (+ c_~N~0 4294967295)) (.cse13 (+ c_~N~0 4294967294)) (.cse5 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (+ .cse52 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse10 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse7 (+ .cse51 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse31 (* 8 .cse50))) (and (or (let ((.cse8 (+ 10 (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse31))))) (and (or (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse12 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 31 (select (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse6 .cse7 .cse8) .cse9 v_ArrVal_860)))) (let ((.cse1 (let ((.cse4 (store (select .cse2 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse4 .cse5 (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~b~0#1.base| .cse4) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (store .cse1 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse3 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~b~0#1.base| .cse1) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse3 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse1 (+ .cse3 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) .cse10)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse11 .cse12) (< .cse12 .cse13)))) .cse14) (or .cse15 (let ((.cse22 (store .cse6 .cse30 .cse8))) (and (or .cse16 (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse17 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse11 .cse17) (= 31 (select (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse22 .cse23 v_ArrVal_860)))) (let ((.cse18 (let ((.cse21 (store (select .cse20 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse21 .cse5 (+ (select (select (store .cse20 |c_ULTIMATE.start_main_~b~0#1.base| .cse21) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (store .cse18 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse19 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse18 (+ .cse19 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store .cse20 |c_ULTIMATE.start_main_~b~0#1.base| .cse18) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse19 |c_ULTIMATE.start_main_~a~0#1.offset|))))))) .cse10)) (< .cse17 .cse13) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))) (or .cse24 (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse25 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse11 .cse25) (= 31 (select (let ((.cse28 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse22 .cse9 v_ArrVal_860)))) (let ((.cse26 (let ((.cse29 (store (select .cse28 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse29 .cse5 (+ (select (select (store .cse28 |c_ULTIMATE.start_main_~b~0#1.base| .cse29) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (store .cse26 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse27 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse26 (+ .cse27 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store .cse28 |c_ULTIMATE.start_main_~b~0#1.base| .cse26) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset|))))))) .cse10)) (< .cse25 .cse13) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))))))) (not .cse32)) (or .cse32 (let ((.cse38 (+ (select .cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse31)) 10))) (and (or .cse15 (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse33 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse11 .cse33) (< .cse33 .cse13) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= 31 (select (let ((.cse35 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse6 .cse30 .cse38) .cse23 v_ArrVal_860)))) (let ((.cse34 (let ((.cse37 (store (select .cse35 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse37 .cse5 (+ (select (select (store .cse35 |c_ULTIMATE.start_main_~b~0#1.base| .cse37) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (store .cse34 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse36 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse35 |c_ULTIMATE.start_main_~b~0#1.base| .cse34) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse34 (+ .cse36 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) .cse10)))))) (or .cse14 (let ((.cse44 (store .cse6 .cse7 .cse38))) (and (or (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse39 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse11 .cse39) (< .cse39 .cse13) (= (select (let ((.cse41 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse44 .cse23 v_ArrVal_860)))) (let ((.cse40 (let ((.cse43 (store (select .cse41 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse43 .cse5 (+ (select (select (store .cse41 |c_ULTIMATE.start_main_~b~0#1.base| .cse43) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (store .cse40 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse42 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse41 |c_ULTIMATE.start_main_~b~0#1.base| .cse40) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse42 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse40 (+ .cse42 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) .cse10) 31)))) .cse16) (or .cse24 (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse45 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse11 .cse45) (< .cse45 .cse13) (= 31 (select (let ((.cse47 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse44 .cse9 v_ArrVal_860)))) (let ((.cse46 (let ((.cse49 (store (select .cse47 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse49 .cse5 (+ (select (select (store .cse47 |c_ULTIMATE.start_main_~b~0#1.base| .cse49) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (store .cse46 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse48 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse47 |c_ULTIMATE.start_main_~b~0#1.base| .cse46) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse48 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse46 (+ .cse48 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) .cse10)))))))))))))))))) is different from true [2022-11-16 15:55:53,630 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:55:53,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 47 [2022-11-16 15:55:53,657 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:55:53,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 8 [2022-11-16 15:56:32,292 WARN L233 SmtUtils]: Spent 28.16s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 15:56:32,292 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 15:56:32,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 997814 treesize of output 509219 [2022-11-16 15:56:34,177 INFO L217 Elim1Store]: Index analysis took 915 ms [2022-11-16 15:58:00,590 WARN L233 SmtUtils]: Spent 1.44m on a formula simplification. DAG size of input: 64 DAG size of output: 15 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 15:58:00,591 INFO L321 Elim1Store]: treesize reduction 127, result has 13.6 percent of original size [2022-11-16 15:58:00,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 508887 treesize of output 507961 [2022-11-16 15:58:02,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:02,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:02,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:02,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:02,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 15:58:02,449 INFO L173 IndexEqualityManager]: detected equality via solver