./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ncomp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ncomp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3d1ff002f6e6cf179cc6204a129c133a3beda704ea9fff27ad69a10f5c1f33d --- 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-b5237d8 [2022-11-21 13:45:41,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:45:41,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:45:41,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:45:41,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:45:41,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:45:41,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:45:41,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:45:41,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:45:41,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:45:41,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:45:41,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:45:41,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:45:41,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:45:41,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:45:41,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:45:41,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:45:41,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:45:41,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:45:41,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:45:41,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:45:41,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:45:41,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:45:41,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:45:41,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:45:41,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:45:41,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:45:41,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:45:41,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:45:41,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:45:41,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:45:41,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:45:41,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:45:41,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:45:41,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:45:41,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:45:41,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:45:41,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:45:41,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:45:41,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:45:41,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:45:41,886 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 13:45:41,913 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:45:41,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:45:41,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:45:41,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:45:41,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:45:41,916 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:45:41,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:45:41,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:45:41,917 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:45:41,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:45:41,918 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:45:41,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:45:41,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:45:41,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:45:41,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:45:41,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:45:41,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:45:41,920 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:45:41,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:45:41,920 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:45:41,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:45:41,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:45:41,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:45:41,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:45:41,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:45:41,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:45:41,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:45:41,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:45:41,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:45:41,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:45:41,923 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:45:41,923 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:45:41,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:45:41,923 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_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3d1ff002f6e6cf179cc6204a129c133a3beda704ea9fff27ad69a10f5c1f33d [2022-11-21 13:45:42,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:45:42,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:45:42,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:45:42,281 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:45:42,282 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:45:42,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/array-fpi/ncomp.c [2022-11-21 13:45:45,284 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:45:45,496 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:45:45,496 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/sv-benchmarks/c/array-fpi/ncomp.c [2022-11-21 13:45:45,503 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/data/19f97b024/11d5d06e47f84cd98d927ef83494f547/FLAG973de83cd [2022-11-21 13:45:45,517 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/data/19f97b024/11d5d06e47f84cd98d927ef83494f547 [2022-11-21 13:45:45,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:45:45,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:45:45,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:45:45,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:45:45,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:45:45,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e2def3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45, skipping insertion in model container [2022-11-21 13:45:45,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:45:45,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:45:45,703 WARN L237 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_42dcd693-8827-409e-b522-559a05f39162/sv-benchmarks/c/array-fpi/ncomp.c[588,601] [2022-11-21 13:45:45,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:45:45,760 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:45:45,778 WARN L237 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_42dcd693-8827-409e-b522-559a05f39162/sv-benchmarks/c/array-fpi/ncomp.c[588,601] [2022-11-21 13:45:45,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:45:45,833 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:45:45,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45 WrapperNode [2022-11-21 13:45:45,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:45:45,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:45:45,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:45:45,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:45:45,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,872 INFO L138 Inliner]: procedures = 16, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2022-11-21 13:45:45,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:45:45,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:45:45,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:45:45,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:45:45,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,899 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:45:45,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:45:45,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:45:45,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:45:45,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45" (1/1) ... [2022-11-21 13:45:45,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:45:45,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:45,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:45:45,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:45:45,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:45:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:45:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:45:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 13:45:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:45:45,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:45:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:45:46,065 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:45:46,067 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:45:46,308 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:45:46,314 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:45:46,314 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 13:45:46,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:46 BoogieIcfgContainer [2022-11-21 13:45:46,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:45:46,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:45:46,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:45:46,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:45:46,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:45:45" (1/3) ... [2022-11-21 13:45:46,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9442f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:45:46, skipping insertion in model container [2022-11-21 13:45:46,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:45" (2/3) ... [2022-11-21 13:45:46,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9442f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:45:46, skipping insertion in model container [2022-11-21 13:45:46,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:46" (3/3) ... [2022-11-21 13:45:46,325 INFO L112 eAbstractionObserver]: Analyzing ICFG ncomp.c [2022-11-21 13:45:46,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:45:46,367 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 13:45:46,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:45:46,441 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e8b4378, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:45:46,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 13:45:46,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 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) [2022-11-21 13:45:46,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 13:45:46,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:46,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:46,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:45:46,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:46,491 INFO L85 PathProgramCache]: Analyzing trace with hash -592971038, now seen corresponding path program 1 times [2022-11-21 13:45:46,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:46,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307882092] [2022-11-21 13:45:46,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:46,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:46,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:46,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307882092] [2022-11-21 13:45:46,718 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-21 13:45:46,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547401660] [2022-11-21 13:45:46,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:46,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:46,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:46,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:45:46,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 13:45:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:46,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 13:45:46,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:45:46,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:46,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:45:46,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547401660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:46,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:46,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:45:46,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643716201] [2022-11-21 13:45:46,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:46,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 13:45:46,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:46,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 13:45:46,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:45:46,971 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 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) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:46,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:46,996 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2022-11-21 13:45:46,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 13:45:46,998 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 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 [2022-11-21 13:45:46,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:47,009 INFO L225 Difference]: With dead ends: 44 [2022-11-21 13:45:47,010 INFO L226 Difference]: Without dead ends: 20 [2022-11-21 13:45:47,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:45:47,017 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:47,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:45:47,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-21 13:45:47,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-21 13:45:47,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:47,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-11-21 13:45:47,063 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 14 [2022-11-21 13:45:47,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:47,063 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-21 13:45:47,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:47,064 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-11-21 13:45:47,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 13:45:47,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:47,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:47,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:47,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-21 13:45:47,273 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:45:47,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:47,274 INFO L85 PathProgramCache]: Analyzing trace with hash 108093540, now seen corresponding path program 1 times [2022-11-21 13:45:47,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:47,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989078589] [2022-11-21 13:45:47,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:47,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:47,317 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:45:47,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343342326] [2022-11-21 13:45:47,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:47,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:47,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:47,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:45:47,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 13:45:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:47,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-21 13:45:47,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:45:47,681 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-21 13:45:47,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 229 [2022-11-21 13:45:47,708 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:45:47,734 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:45:47,757 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:45:48,609 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 [2022-11-21 13:45:48,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:45:48,823 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 41 treesize of output 14 [2022-11-21 13:45:48,829 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 [2022-11-21 13:45:48,833 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 [2022-11-21 13:45:48,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:45:48,845 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 48 treesize of output 19 [2022-11-21 13:45:48,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:48,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:45:48,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:48,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989078589] [2022-11-21 13:45:48,967 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:45:48,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343342326] [2022-11-21 13:45:48,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343342326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:48,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:48,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 13:45:48,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655007231] [2022-11-21 13:45:48,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:48,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:45:48,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:48,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:45:48,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:45:48,970 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:49,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:49,120 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2022-11-21 13:45:49,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 13:45:49,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 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 [2022-11-21 13:45:49,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:49,122 INFO L225 Difference]: With dead ends: 39 [2022-11-21 13:45:49,122 INFO L226 Difference]: Without dead ends: 37 [2022-11-21 13:45:49,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-21 13:45:49,123 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 51 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:49,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 51 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:49,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-21 13:45:49,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 28. [2022-11-21 13:45:49,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 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) [2022-11-21 13:45:49,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-11-21 13:45:49,132 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 14 [2022-11-21 13:45:49,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:49,134 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-11-21 13:45:49,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:49,134 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-11-21 13:45:49,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 13:45:49,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:49,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:49,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:49,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-21 13:45:49,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:45:49,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:49,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1850906398, now seen corresponding path program 1 times [2022-11-21 13:45:49,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:49,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837931677] [2022-11-21 13:45:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:49,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:49,398 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:45:49,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2134977856] [2022-11-21 13:45:49,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:49,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:49,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:49,400 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:45:49,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 13:45:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:49,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:45:49,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:45:49,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:49,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:45:49,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:49,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837931677] [2022-11-21 13:45:49,538 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:45:49,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134977856] [2022-11-21 13:45:49,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134977856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:49,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:49,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:45:49,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098339033] [2022-11-21 13:45:49,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:49,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:45:49,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:49,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:45:49,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:45:49,545 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2022-11-21 13:45:49,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:49,673 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2022-11-21 13:45:49,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:45:49,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-21 13:45:49,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:49,676 INFO L225 Difference]: With dead ends: 62 [2022-11-21 13:45:49,676 INFO L226 Difference]: Without dead ends: 50 [2022-11-21 13:45:49,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:45:49,686 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 31 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:49,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 32 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:49,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-21 13:45:49,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 31. [2022-11-21 13:45:49,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:49,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-11-21 13:45:49,701 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 16 [2022-11-21 13:45:49,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:49,701 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-11-21 13:45:49,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2022-11-21 13:45:49,702 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-11-21 13:45:49,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 13:45:49,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:49,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:49,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:49,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:49,908 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:45:49,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:49,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1060218526, now seen corresponding path program 1 times [2022-11-21 13:45:49,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:49,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275718739] [2022-11-21 13:45:49,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:49,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:49,939 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:45:49,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1131925507] [2022-11-21 13:45:49,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:49,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:49,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:49,947 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:45:49,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 13:45:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:50,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:45:50,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:45:50,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:50,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:45:50,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:50,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:50,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275718739] [2022-11-21 13:45:50,121 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:45:50,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131925507] [2022-11-21 13:45:50,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131925507] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:45:50,122 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 13:45:50,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2022-11-21 13:45:50,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090466678] [2022-11-21 13:45:50,122 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 13:45:50,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:45:50,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:50,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:45:50,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:45:50,124 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2022-11-21 13:45:50,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:50,270 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2022-11-21 13:45:50,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 13:45:50,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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 16 [2022-11-21 13:45:50,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:50,271 INFO L225 Difference]: With dead ends: 53 [2022-11-21 13:45:50,271 INFO L226 Difference]: Without dead ends: 44 [2022-11-21 13:45:50,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-21 13:45:50,272 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 35 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:50,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 49 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:50,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-21 13:45:50,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 30. [2022-11-21 13:45:50,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 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) [2022-11-21 13:45:50,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-11-21 13:45:50,278 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 16 [2022-11-21 13:45:50,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:50,278 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-11-21 13:45:50,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2022-11-21 13:45:50,278 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-11-21 13:45:50,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-21 13:45:50,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:50,279 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:50,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:50,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:50,480 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:45:50,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:50,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1120615462, now seen corresponding path program 1 times [2022-11-21 13:45:50,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:50,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141468540] [2022-11-21 13:45:50,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:50,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:50,504 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:45:50,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [311948849] [2022-11-21 13:45:50,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:50,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:50,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:50,508 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:45:50,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 13:45:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:50,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 13:45:50,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:45:50,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:50,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:45:50,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:50,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141468540] [2022-11-21 13:45:50,661 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:45:50,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311948849] [2022-11-21 13:45:50,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311948849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:50,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:50,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 13:45:50,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444832161] [2022-11-21 13:45:50,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:50,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:45:50,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:50,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:45:50,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:45:50,664 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2022-11-21 13:45:50,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:50,769 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2022-11-21 13:45:50,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 13:45:50,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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 18 [2022-11-21 13:45:50,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:50,771 INFO L225 Difference]: With dead ends: 48 [2022-11-21 13:45:50,772 INFO L226 Difference]: Without dead ends: 32 [2022-11-21 13:45:50,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-21 13:45:50,773 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 23 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:50,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 29 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:45:50,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-21 13:45:50,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2022-11-21 13:45:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 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) [2022-11-21 13:45:50,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-11-21 13:45:50,784 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2022-11-21 13:45:50,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:50,784 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-21 13:45:50,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2022-11-21 13:45:50,785 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-11-21 13:45:50,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 13:45:50,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:50,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:50,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:50,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:50,999 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:45:51,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:51,000 INFO L85 PathProgramCache]: Analyzing trace with hash 615941150, now seen corresponding path program 1 times [2022-11-21 13:45:51,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:51,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061293301] [2022-11-21 13:45:51,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:51,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:51,035 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:45:51,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1512482526] [2022-11-21 13:45:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:51,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:51,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:51,041 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:45:51,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 13:45:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:51,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-21 13:45:51,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:45:51,397 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-21 13:45:51,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 229 [2022-11-21 13:45:51,415 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:45:51,430 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:45:51,443 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:45:51,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:45:51,528 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:45:51,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 93 treesize of output 84 [2022-11-21 13:45:51,536 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 [2022-11-21 13:45:51,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:45:51,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:45:51,638 INFO L321 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2022-11-21 13:45:51,639 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 2 new quantified variables, introduced 5 case distinctions, treesize of input 93 treesize of output 92 [2022-11-21 13:45:51,676 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 5 treesize of output 3 [2022-11-21 13:45:51,688 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 [2022-11-21 13:45:51,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:45:51,715 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 48 treesize of output 11 [2022-11-21 13:45:51,720 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 [2022-11-21 13:45:51,911 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 14 treesize of output 12 [2022-11-21 13:45:51,940 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse3 (= |c_ULTIMATE.start_main_~a~0#1.base| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse4 (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse1 (not .cse4)) (.cse0 (not .cse3))) (and (<= (mod c_~N~0 4294967296) 536870911) .cse0 .cse1 (let ((.cse2 (= c_~N~0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|)))) (or (and .cse2 .cse3) (and (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (or (and .cse2 .cse4 (exists ((v_DerPreprocessor_20 (Array Int Int)) (v_DerPreprocessor_19 (Array Int Int)) (v_DerPreprocessor_18 (Array Int Int))) (let ((.cse6 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_18) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_19) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_20) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_18) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_19) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_20))) (and (= c_~N~0 (select v_DerPreprocessor_20 |c_ULTIMATE.start_main_~c~0#1.offset|)) (= .cse5 (select .cse6 |c_ULTIMATE.start_main_~a~0#1.base|)) (= v_DerPreprocessor_19 (select .cse6 |c_ULTIMATE.start_main_~b~0#1.base|)))))) (and .cse2 .cse1 (exists ((v_DerPreprocessor_15 (Array Int Int)) (v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (let ((.cse8 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_13) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_14) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_13) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_14))) (let ((.cse11 (store (store (store (store (store (store .cse8 |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_15) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_16) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_17) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_15) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_16) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_17))) (let ((.cse7 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse9 (select .cse11 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse10 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= .cse7 (select .cse8 |c_ULTIMATE.start_main_~b~0#1.base|)) (= v_DerPreprocessor_15 .cse9) (= v_DerPreprocessor_12 .cse10) (= .cse7 (select .cse11 |c_ULTIMATE.start_main_~b~0#1.base|)) (= c_~N~0 (select v_DerPreprocessor_17 |c_ULTIMATE.start_main_~c~0#1.offset|)) (= c_~N~0 (select v_DerPreprocessor_14 |c_ULTIMATE.start_main_~c~0#1.offset|)) (= .cse5 .cse9) (= .cse5 .cse10))))))))) .cse0)))))) is different from true [2022-11-21 13:45:51,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:45:51,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:45:52,018 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-21 13:45:52,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 87 [2022-11-21 13:45:52,024 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 [2022-11-21 13:45:52,051 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 [2022-11-21 13:45:52,096 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 14 treesize of output 16 [2022-11-21 13:45:52,185 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 21 treesize of output 20 [2022-11-21 13:45:52,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-21 13:45:52,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:45:52,504 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_313 (Array Int Int))) (= c_~N~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_313) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|))) is different from false [2022-11-21 13:45:52,535 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_313 (Array Int Int)) (v_ArrVal_312 (Array Int Int))) (= c_~N~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_312) |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_313) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|))) is different from false [2022-11-21 13:45:52,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:45:52,549 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:45:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-21 13:45:52,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:52,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061293301] [2022-11-21 13:45:52,552 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:45:52,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512482526] [2022-11-21 13:45:52,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512482526] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:45:52,552 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 13:45:52,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2022-11-21 13:45:52,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780582479] [2022-11-21 13:45:52,553 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 13:45:52,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 13:45:52,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:52,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 13:45:52,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=121, Unknown=3, NotChecked=72, Total=240 [2022-11-21 13:45:52,555 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:52,615 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse4 (= |c_ULTIMATE.start_main_~a~0#1.base| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse5 (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse1 (<= (mod c_~N~0 4294967296) 536870911)) (.cse0 (= c_~N~0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|))) (.cse3 (not .cse5)) (.cse2 (not .cse4))) (and .cse0 .cse1 (or (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 1) .cse1) (and (not .cse1) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0))) .cse2 (forall ((v_ArrVal_313 (Array Int Int)) (v_ArrVal_312 (Array Int Int))) (= c_~N~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_312) |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_313) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|))) .cse3 (or (and .cse0 .cse4) (and (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (or (and .cse0 .cse5 (exists ((v_DerPreprocessor_20 (Array Int Int)) (v_DerPreprocessor_19 (Array Int Int)) (v_DerPreprocessor_18 (Array Int Int))) (let ((.cse7 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_18) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_19) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_20) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_18) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_19) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_20))) (and (= c_~N~0 (select v_DerPreprocessor_20 |c_ULTIMATE.start_main_~c~0#1.offset|)) (= .cse6 (select .cse7 |c_ULTIMATE.start_main_~a~0#1.base|)) (= v_DerPreprocessor_19 (select .cse7 |c_ULTIMATE.start_main_~b~0#1.base|)))))) (and .cse0 .cse3 (exists ((v_DerPreprocessor_15 (Array Int Int)) (v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (let ((.cse9 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_13) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_14) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_13) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_14))) (let ((.cse12 (store (store (store (store (store (store .cse9 |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_15) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_16) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_17) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_15) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_16) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_17))) (let ((.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse10 (select .cse12 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse11 (select .cse9 |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= .cse8 (select .cse9 |c_ULTIMATE.start_main_~b~0#1.base|)) (= v_DerPreprocessor_15 .cse10) (= v_DerPreprocessor_12 .cse11) (= .cse8 (select .cse12 |c_ULTIMATE.start_main_~b~0#1.base|)) (= c_~N~0 (select v_DerPreprocessor_17 |c_ULTIMATE.start_main_~c~0#1.offset|)) (= c_~N~0 (select v_DerPreprocessor_14 |c_ULTIMATE.start_main_~c~0#1.offset|)) (= .cse6 .cse10) (= .cse6 .cse11))))))))) .cse2)) (= |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from true [2022-11-21 13:45:53,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:53,182 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2022-11-21 13:45:53,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 13:45:53,183 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-21 13:45:53,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:53,184 INFO L225 Difference]: With dead ends: 66 [2022-11-21 13:45:53,184 INFO L226 Difference]: Without dead ends: 64 [2022-11-21 13:45:53,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=378, Unknown=4, NotChecked=180, Total=702 [2022-11-21 13:45:53,185 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 112 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 122 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:53,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 84 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 145 Invalid, 0 Unknown, 122 Unchecked, 0.3s Time] [2022-11-21 13:45:53,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-21 13:45:53,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 38. [2022-11-21 13:45:53,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 37 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:53,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2022-11-21 13:45:53,197 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 20 [2022-11-21 13:45:53,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:53,197 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2022-11-21 13:45:53,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:53,198 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-11-21 13:45:53,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 13:45:53,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:53,199 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:53,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:53,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-21 13:45:53,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:45:53,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:53,406 INFO L85 PathProgramCache]: Analyzing trace with hash 803751580, now seen corresponding path program 2 times [2022-11-21 13:45:53,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:53,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846658027] [2022-11-21 13:45:53,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:53,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:53,438 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:45:53,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198683474] [2022-11-21 13:45:53,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 13:45:53,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:53,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:53,447 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:45:53,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 13:45:53,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 13:45:53,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:45:53,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 13:45:53,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:45:53,611 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 13:45:53,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:45:53,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 13:45:53,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:53,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846658027] [2022-11-21 13:45:53,662 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:45:53,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198683474] [2022-11-21 13:45:53,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198683474] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:45:53,662 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 13:45:53,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-21 13:45:53,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332589062] [2022-11-21 13:45:53,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 13:45:53,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 13:45:53,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:53,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 13:45:53,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-21 13:45:53,664 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 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) [2022-11-21 13:45:53,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:53,912 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2022-11-21 13:45:53,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 13:45:53,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 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 22 [2022-11-21 13:45:53,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:53,914 INFO L225 Difference]: With dead ends: 86 [2022-11-21 13:45:53,914 INFO L226 Difference]: Without dead ends: 72 [2022-11-21 13:45:53,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-11-21 13:45:53,915 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 62 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:53,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 64 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:45:53,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-21 13:45:53,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 48. [2022-11-21 13:45:53,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 47 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:53,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2022-11-21 13:45:53,927 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 22 [2022-11-21 13:45:53,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:53,927 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2022-11-21 13:45:53,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 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) [2022-11-21 13:45:53,928 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2022-11-21 13:45:53,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 13:45:53,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:53,929 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:53,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:54,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:54,135 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:45:54,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:54,136 INFO L85 PathProgramCache]: Analyzing trace with hash 678263444, now seen corresponding path program 1 times [2022-11-21 13:45:54,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:54,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789219973] [2022-11-21 13:45:54,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:54,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:54,161 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:45:54,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1354367725] [2022-11-21 13:45:54,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:54,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:45:54,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:54,163 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:45:54,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 13:45:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:54,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-21 13:45:54,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:45:54,380 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 13:45:54,380 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 23 treesize of output 19 [2022-11-21 13:45:54,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:45:54,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:45:54,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:45:54,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2022-11-21 13:45:54,404 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:45:54,409 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:45:54,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-21 13:45:54,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:45:54,511 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 28 treesize of output 30 [2022-11-21 13:45:54,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:45:54,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-11-21 13:45:54,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:45:54,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:45:55,798 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_447 (Array Int Int)) (v_ArrVal_448 Int)) (= (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_447))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|))) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse1 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_448)) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|)))) (+ c_~N~0 1))) is different from false [2022-11-21 13:45:55,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-21 13:45:55,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:55,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789219973] [2022-11-21 13:45:55,834 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:45:55,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354367725] [2022-11-21 13:45:55,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354367725] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:45:55,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 13:45:55,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2022-11-21 13:45:55,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392566620] [2022-11-21 13:45:55,835 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 13:45:55,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-21 13:45:55,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:55,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-21 13:45:55,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=277, Unknown=1, NotChecked=34, Total=380 [2022-11-21 13:45:55,838 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 20 states, 20 states have (on average 2.15) internal successors, (43), 20 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:59,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:45:59,898 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2022-11-21 13:45:59,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-21 13:45:59,898 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.15) internal successors, (43), 20 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-21 13:45:59,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:45:59,899 INFO L225 Difference]: With dead ends: 101 [2022-11-21 13:45:59,899 INFO L226 Difference]: Without dead ends: 99 [2022-11-21 13:45:59,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=344, Invalid=1299, Unknown=1, NotChecked=78, Total=1722 [2022-11-21 13:45:59,900 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 181 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-21 13:45:59,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 129 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 235 Invalid, 1 Unknown, 49 Unchecked, 0.9s Time] [2022-11-21 13:45:59,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-21 13:45:59,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 66. [2022-11-21 13:45:59,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.2) internal successors, (78), 65 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:59,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2022-11-21 13:45:59,918 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 24 [2022-11-21 13:45:59,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:45:59,918 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2022-11-21 13:45:59,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.15) internal successors, (43), 20 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:45:59,918 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2022-11-21 13:45:59,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 13:45:59,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:45:59,919 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:59,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 13:46:00,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:46:00,130 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:00,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:00,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1455292262, now seen corresponding path program 3 times [2022-11-21 13:46:00,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:00,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334041463] [2022-11-21 13:46:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:00,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:00,156 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:46:00,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1149649396] [2022-11-21 13:46:00,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 13:46:00,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:46:00,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:46:00,158 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:46:00,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-21 13:46:00,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-21 13:46:00,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:46:00,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 13:46:00,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:46:00,489 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 13:46:00,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:46:00,570 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 13:46:00,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:00,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334041463] [2022-11-21 13:46:00,571 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:46:00,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149649396] [2022-11-21 13:46:00,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149649396] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:46:00,571 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 13:46:00,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-21 13:46:00,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951170] [2022-11-21 13:46:00,572 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 13:46:00,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 13:46:00,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:00,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 13:46:00,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-11-21 13:46:00,573 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 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) [2022-11-21 13:46:00,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:00,942 INFO L93 Difference]: Finished difference Result 144 states and 163 transitions. [2022-11-21 13:46:00,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 13:46:00,943 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-21 13:46:00,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:00,943 INFO L225 Difference]: With dead ends: 144 [2022-11-21 13:46:00,944 INFO L226 Difference]: Without dead ends: 82 [2022-11-21 13:46:00,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2022-11-21 13:46:00,945 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 121 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:00,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 65 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:46:00,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-21 13:46:00,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 45. [2022-11-21 13:46:00,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 44 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:46:00,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2022-11-21 13:46:00,956 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 24 [2022-11-21 13:46:00,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:00,956 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2022-11-21 13:46:00,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 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) [2022-11-21 13:46:00,956 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-11-21 13:46:00,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 13:46:00,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:00,957 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:46:00,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-21 13:46:01,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:46:01,164 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:01,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:01,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1304966232, now seen corresponding path program 4 times [2022-11-21 13:46:01,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:01,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833249002] [2022-11-21 13:46:01,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:01,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:01,207 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:46:01,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223224487] [2022-11-21 13:46:01,222 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 13:46:01,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:46:01,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:46:01,227 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:46:01,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 13:46:01,552 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 13:46:01,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:46:01,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-21 13:46:01,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:46:01,678 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-21 13:46:01,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 229 [2022-11-21 13:46:01,693 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:46:01,710 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:46:01,724 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:46:02,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:46:02,056 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-21 13:46:02,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 95 treesize of output 84 [2022-11-21 13:46:02,063 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 [2022-11-21 13:46:02,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:02,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:46:02,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:46:02,158 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 75 treesize of output 36 [2022-11-21 13:46:02,166 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 [2022-11-21 13:46:02,173 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 [2022-11-21 13:46:02,245 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-21 13:46:02,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 16 [2022-11-21 13:46:02,250 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 [2022-11-21 13:46:02,394 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 14 treesize of output 12 [2022-11-21 13:46:02,451 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 14 treesize of output 16 [2022-11-21 13:46:02,484 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 14 treesize of output 16 [2022-11-21 13:46:02,520 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 14 treesize of output 16 [2022-11-21 13:46:02,538 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 14 treesize of output 16 [2022-11-21 13:46:02,584 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 57 treesize of output 50 [2022-11-21 13:46:02,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:02,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:02,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2022-11-21 13:46:02,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:02,637 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 [2022-11-21 13:46:02,675 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 13:46:02,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:46:03,031 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_600 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_600) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) c_~N~0)) is different from false [2022-11-21 13:46:03,052 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_600 (Array Int Int)) (v_ArrVal_598 (Array Int Int))) (= c_~N~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_598) |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_600) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|))) is different from false [2022-11-21 13:46:03,070 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 6 not checked. [2022-11-21 13:46:03,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:03,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833249002] [2022-11-21 13:46:03,071 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:46:03,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223224487] [2022-11-21 13:46:03,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223224487] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:46:03,071 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 13:46:03,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-11-21 13:46:03,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840485797] [2022-11-21 13:46:03,073 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 13:46:03,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 13:46:03,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:03,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 13:46:03,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=179, Unknown=2, NotChecked=58, Total=306 [2022-11-21 13:46:03,074 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:46:04,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:04,269 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2022-11-21 13:46:04,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 13:46:04,269 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-21 13:46:04,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:04,270 INFO L225 Difference]: With dead ends: 99 [2022-11-21 13:46:04,270 INFO L226 Difference]: Without dead ends: 97 [2022-11-21 13:46:04,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 35 SyntacticMatches, 10 SemanticMatches, 27 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=204, Invalid=504, Unknown=2, NotChecked=102, Total=812 [2022-11-21 13:46:04,271 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 146 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 83 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:04,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 109 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 201 Invalid, 0 Unknown, 83 Unchecked, 0.7s Time] [2022-11-21 13:46:04,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-21 13:46:04,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 54. [2022-11-21 13:46:04,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.169811320754717) internal successors, (62), 53 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:46:04,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2022-11-21 13:46:04,285 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 26 [2022-11-21 13:46:04,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:04,286 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2022-11-21 13:46:04,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:46:04,286 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2022-11-21 13:46:04,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-21 13:46:04,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:04,287 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:46:04,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-21 13:46:04,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:46:04,494 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:04,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:04,495 INFO L85 PathProgramCache]: Analyzing trace with hash 341343694, now seen corresponding path program 2 times [2022-11-21 13:46:04,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:04,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533677923] [2022-11-21 13:46:04,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:04,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:04,536 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:46:04,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [109039374] [2022-11-21 13:46:04,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 13:46:04,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:46:04,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:46:04,538 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:46:04,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-21 13:46:04,884 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 13:46:04,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:46:04,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-21 13:46:04,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:46:04,903 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 13:46:04,903 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 23 treesize of output 19 [2022-11-21 13:46:04,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:04,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:04,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:04,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2022-11-21 13:46:04,925 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:46:04,932 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:46:04,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-21 13:46:05,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-21 13:46:05,133 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 64 treesize of output 60 [2022-11-21 13:46:05,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2022-11-21 13:46:05,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 24 [2022-11-21 13:46:05,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,223 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 28 treesize of output 30 [2022-11-21 13:46:05,299 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 139 treesize of output 127 [2022-11-21 13:46:05,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:46:05,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,316 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 120 treesize of output 194 [2022-11-21 13:46:05,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,353 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 170 treesize of output 98 [2022-11-21 13:46:05,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:05,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 44 [2022-11-21 13:46:05,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 29 [2022-11-21 13:46:05,723 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:46:05,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:46:09,632 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_691 Int) (v_ArrVal_687 (Array Int Int)) (v_ArrVal_689 Int)) (= (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_687))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|))) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse1 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_689) (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_691)) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|)))) (+ c_~N~0 1))) is different from false [2022-11-21 13:46:09,687 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 3 not checked. [2022-11-21 13:46:09,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:09,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533677923] [2022-11-21 13:46:09,688 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:46:09,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109039374] [2022-11-21 13:46:09,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109039374] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:46:09,688 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 13:46:09,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 27 [2022-11-21 13:46:09,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540396930] [2022-11-21 13:46:09,689 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 13:46:09,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-21 13:46:09,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:09,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-21 13:46:09,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=542, Unknown=1, NotChecked=48, Total=702 [2022-11-21 13:46:09,692 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 27 states, 27 states have (on average 2.037037037037037) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:46:21,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:46:23,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:46:25,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:46:38,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:38,950 INFO L93 Difference]: Finished difference Result 118 states and 127 transitions. [2022-11-21 13:46:38,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-21 13:46:38,950 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.037037037037037) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-21 13:46:38,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:38,951 INFO L225 Difference]: With dead ends: 118 [2022-11-21 13:46:38,951 INFO L226 Difference]: Without dead ends: 116 [2022-11-21 13:46:38,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=606, Invalid=2813, Unknown=7, NotChecked=114, Total=3540 [2022-11-21 13:46:38,953 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 245 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 76 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:38,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 149 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 353 Invalid, 9 Unknown, 56 Unchecked, 10.0s Time] [2022-11-21 13:46:38,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-21 13:46:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 59. [2022-11-21 13:46:38,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 58 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:46:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2022-11-21 13:46:38,971 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 30 [2022-11-21 13:46:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:38,972 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2022-11-21 13:46:38,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.037037037037037) internal successors, (55), 27 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:46:38,972 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2022-11-21 13:46:38,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-21 13:46:38,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:38,973 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:46:38,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-21 13:46:39,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-21 13:46:39,180 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:39,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:39,181 INFO L85 PathProgramCache]: Analyzing trace with hash 505093188, now seen corresponding path program 3 times [2022-11-21 13:46:39,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:39,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506358009] [2022-11-21 13:46:39,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:39,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:39,200 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:46:39,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423785941] [2022-11-21 13:46:39,201 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 13:46:39,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:46:39,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:46:39,202 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:46:39,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-21 13:46:39,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-21 13:46:39,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:46:39,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 80 conjunts are in the unsatisfiable core [2022-11-21 13:46:39,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:46:39,769 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 13:46:39,769 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 23 treesize of output 19 [2022-11-21 13:46:39,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:39,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:39,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:39,796 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 34 [2022-11-21 13:46:39,802 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 34 [2022-11-21 13:46:39,808 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 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-21 13:46:39,813 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:46:39,823 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:46:39,834 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 13:46:39,945 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 13:46:39,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 70 [2022-11-21 13:46:39,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:39,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:39,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2022-11-21 13:46:40,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:40,131 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 13:46:40,132 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 1 case distinctions, treesize of input 35 treesize of output 40 [2022-11-21 13:46:40,332 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 13:46:40,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 146 treesize of output 137 [2022-11-21 13:46:40,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:46:40,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:40,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:40,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:40,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:40,357 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 120 treesize of output 194 [2022-11-21 13:46:40,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:40,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:40,405 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 175 treesize of output 108 [2022-11-21 13:46:40,658 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-21 13:46:40,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 101 [2022-11-21 13:46:40,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:40,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:40,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:40,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 157 [2022-11-21 13:46:41,078 INFO L321 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2022-11-21 13:46:41,079 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 3 case distinctions, treesize of input 164 treesize of output 151 [2022-11-21 13:46:41,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:41,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:41,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:46:41,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:41,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:41,104 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 123 treesize of output 197 [2022-11-21 13:46:41,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:41,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:41,139 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 200 treesize of output 102 [2022-11-21 13:46:41,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:41,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:41,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 13:46:41,462 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:46:41,468 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-21 13:46:41,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 79 treesize of output 68 [2022-11-21 13:46:42,350 INFO L321 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-11-21 13:46:42,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 120 treesize of output 68 [2022-11-21 13:46:42,391 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:46:42,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:47:21,067 WARN L233 SmtUtils]: Spent 9.31s on a formula simplification. DAG size of input: 129 DAG size of output: 107 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 13:47:21,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:47:21,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:47:21,089 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:47:21,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:47:21,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:47:21,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 13:47:21,099 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-21 13:47:21,099 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 1044 treesize of output 1 [2022-11-21 13:47:21,102 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:47:21,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:47:21,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506358009] [2022-11-21 13:47:21,103 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:47:21,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423785941] [2022-11-21 13:47:21,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423785941] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:47:21,103 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 13:47:21,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 37 [2022-11-21 13:47:21,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580489920] [2022-11-21 13:47:21,104 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 13:47:21,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-21 13:47:21,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:47:21,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-21 13:47:21,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1132, Unknown=5, NotChecked=0, Total=1332 [2022-11-21 13:47:21,106 INFO L87 Difference]: Start difference. First operand 59 states and 67 transitions. Second operand has 37 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 37 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:47:23,242 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse120 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse134 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse103 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse90 (* 8 .cse103)) (.cse131 (* .cse134 8)) (.cse133 (mod .cse120 4294967296))) (let ((.cse48 (<= .cse134 2147483647)) (.cse9 (<= .cse133 2147483647)) (.cse3 (+ .cse131 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse26 (select .cse1 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse90))) (.cse27 (select .cse4 (+ .cse90 |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse132 (* .cse133 8))) (let ((.cse2 (+ .cse132 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse38 (+ .cse132 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse47 (+ .cse132 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse25 (store .cse1 .cse3 (+ .cse26 .cse27))) (.cse6 (+ 16 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse17 (+ .cse132 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse18 (not .cse9)) (.cse24 (+ .cse132 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse8 (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse37 (+ .cse131 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse35 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse36 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse46 (+ .cse131 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse57 (< 3 c_~N~0)) (.cse49 (not .cse48)) (.cse5 (+ .cse131 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse7 (+ c_~N~0 8)) (.cse14 (+ 8 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse15 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse89 (+ .cse131 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse0 (not (< 2 c_~N~0)))) (and (or .cse0 (= (select (store .cse1 .cse2 (+ (select .cse1 .cse3) (select .cse4 .cse5))) .cse6) .cse7)) (or (= (select .cse1 .cse6) .cse7) .cse0) (or .cse8 .cse0 (and (or .cse9 (forall ((v_ArrVal_785 Int)) (= (let ((.cse16 (store .cse4 .cse17 v_ArrVal_785))) (let ((.cse12 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse16))) (let ((.cse13 (select .cse12 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse10 (select .cse16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse11 (select .cse13 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse10 .cse11 (select (select (store .cse12 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse13 .cse14 (+ .cse10 .cse11))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15)))))) .cse7))) (or .cse18 (forall ((v_ArrVal_785 Int)) (= (let ((.cse23 (store .cse4 .cse24 v_ArrVal_785))) (let ((.cse19 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse23))) (let ((.cse20 (select .cse19 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse21 (select .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse22 (select .cse20 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ (select (select (store .cse19 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse20 .cse14 (+ .cse21 .cse22))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse21 .cse22))))) .cse7))))) (<= (mod c_~N~0 4294967296) 536870911) (or .cse0 (= (select (store .cse25 .cse2 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse25) |c_ULTIMATE.start_main_~b~0#1.base|) .cse5) .cse26 .cse27)) .cse6) .cse7)) (or (and (or (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int) (v_ArrVal_780 Int)) (= (let ((.cse34 (store (store .cse36 .cse37 v_ArrVal_780) .cse38 v_ArrVal_782))) (let ((.cse32 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse34))) (let ((.cse33 (select .cse32 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse31 (select .cse33 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse28 (store .cse32 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse33 .cse15 (+ (select .cse34 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse31)) .cse35 v_ArrVal_785)))) (let ((.cse29 (select .cse28 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse30 (select .cse29 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ (select (select (store .cse28 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse29 .cse14 (+ .cse30 .cse31))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse30 .cse31)))))))) .cse7)) .cse18) (or .cse9 (and (or (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int) (v_ArrVal_780 Int)) (= .cse7 (let ((.cse45 (store (store .cse36 .cse46 v_ArrVal_780) .cse47 v_ArrVal_782))) (let ((.cse43 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse45))) (let ((.cse44 (select .cse43 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse42 (select .cse44 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse39 (store .cse43 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse44 .cse15 (+ .cse42 (select .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse35 v_ArrVal_785)))) (let ((.cse40 (select .cse39 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse41 (select .cse40 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ (select (select (store .cse39 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse40 .cse14 (+ .cse41 .cse42))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse41 .cse42)))))))))) .cse48) (or .cse49 (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int) (v_ArrVal_780 Int)) (= (let ((.cse56 (store (store .cse36 .cse37 v_ArrVal_780) .cse47 v_ArrVal_782))) (let ((.cse54 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse56))) (let ((.cse55 (select .cse54 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse50 (select .cse55 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse52 (store .cse54 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse55 .cse15 (+ (select .cse56 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse50)) .cse35 v_ArrVal_785)))) (let ((.cse53 (select .cse52 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse51 (select .cse53 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse50 .cse51 (select (select (store .cse52 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse53 .cse14 (+ .cse50 .cse51))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15))))))))) .cse7)))))) .cse0 .cse57) (or (and (or .cse18 (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int)) (= (let ((.cse64 (store .cse36 .cse38 v_ArrVal_782))) (let ((.cse62 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse64))) (let ((.cse63 (select .cse62 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse61 (select .cse63 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse58 (store .cse62 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse63 .cse15 (+ (select .cse64 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse61)) .cse35 v_ArrVal_785)))) (let ((.cse59 (select .cse58 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse60 (select .cse59 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ (select (select (store .cse58 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse59 .cse14 (+ .cse60 .cse61))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse60 .cse61)))))))) .cse7))) (or .cse9 (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int)) (= .cse7 (let ((.cse71 (store .cse36 .cse47 v_ArrVal_782))) (let ((.cse69 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse71))) (let ((.cse70 (select .cse69 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse66 (select .cse70 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse67 (store .cse69 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse70 .cse15 (+ (select .cse71 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse66)) .cse35 v_ArrVal_785)))) (let ((.cse68 (select .cse67 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse65 (select .cse68 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse65 .cse66 (select (select (store .cse67 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse68 .cse14 (+ .cse65 .cse66))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15))))))))))))) .cse0 .cse57) (or (= (select .cse25 .cse6) .cse7) .cse0) (or (let ((.cse91 (<= .cse103 2147483647))) (and (or (let ((.cse83 (+ .cse27 (select .cse36 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse90))))) (and (or (let ((.cse77 (store .cse4 .cse5 .cse83))) (and (or (forall ((v_ArrVal_785 Int)) (= (let ((.cse76 (store .cse77 .cse24 v_ArrVal_785))) (let ((.cse73 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse76))) (let ((.cse74 (select .cse73 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse72 (select .cse76 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse75 (select .cse74 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse72 (select (select (store .cse73 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse74 .cse14 (+ .cse72 .cse75))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse75))))) .cse7)) .cse18) (or .cse9 (forall ((v_ArrVal_785 Int)) (= (let ((.cse82 (store .cse77 .cse17 v_ArrVal_785))) (let ((.cse80 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse82))) (let ((.cse81 (select .cse80 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse78 (select .cse81 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse79 (select .cse82 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse78 .cse79 (select (select (store .cse80 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse81 .cse14 (+ .cse78 .cse79))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15)))))) .cse7))))) .cse49) (or (forall ((v_ArrVal_785 Int)) (= (let ((.cse88 (store (store .cse4 .cse89 .cse83) .cse17 v_ArrVal_785))) (let ((.cse84 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse88))) (let ((.cse85 (select .cse84 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse86 (select .cse85 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse87 (select .cse88 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ (select (select (store .cse84 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse85 .cse14 (+ .cse86 .cse87))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse86 .cse87))))) .cse7)) .cse48))) (not .cse91)) (or (let ((.cse97 (+ (select .cse36 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse90)) (select .cse4 (+ (- 34359738368) .cse90 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or (and (forall ((v_ArrVal_785 Int)) (= (let ((.cse96 (store (store .cse4 .cse89 .cse97) .cse17 v_ArrVal_785))) (let ((.cse93 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse96))) (let ((.cse94 (select .cse93 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse92 (select .cse94 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse95 (select .cse96 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse92 (select (select (store .cse93 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse94 .cse14 (+ .cse92 .cse95))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse95))))) .cse7)) .cse18) .cse48) (or .cse49 (forall ((v_ArrVal_785 Int)) (= (let ((.cse102 (store (store .cse4 .cse5 .cse97) .cse24 v_ArrVal_785))) (let ((.cse100 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse102))) (let ((.cse101 (select .cse100 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse98 (select .cse101 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse99 (select .cse102 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse98 .cse99 (select (select (store .cse100 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse101 .cse14 (+ .cse98 .cse99))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15)))))) .cse7))))) .cse91))) .cse8 .cse0) (or .cse0 (= .cse7 (let ((.cse104 (select .cse1 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse105 (select .cse4 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| (store .cse1 .cse14 (+ .cse104 .cse105))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse104 .cse105)))) (or .cse0 (and (or (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int)) (= (let ((.cse112 (store .cse36 .cse37 v_ArrVal_782))) (let ((.cse110 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse112))) (let ((.cse111 (select .cse110 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse108 (select .cse111 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse106 (store .cse110 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse111 .cse15 (+ (select .cse112 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse108)) .cse35 v_ArrVal_785)))) (let ((.cse107 (select .cse106 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse109 (select .cse107 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ (select (select (store .cse106 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse107 .cse14 (+ .cse108 .cse109))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse108 .cse109)))))))) .cse7)) .cse49) (or .cse48 (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int)) (= .cse7 (let ((.cse119 (store .cse36 .cse46 v_ArrVal_782))) (let ((.cse117 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse119))) (let ((.cse118 (select .cse117 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse113 (select .cse118 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse114 (store .cse117 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse118 .cse15 (+ .cse113 (select .cse119 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse35 v_ArrVal_785)))) (let ((.cse115 (select .cse114 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse116 (select .cse115 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse113 (select (select (store .cse114 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse115 .cse14 (+ .cse113 .cse116))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse116)))))))))))) .cse57) (or (< .cse120 c_~N~0) (and (or .cse49 (forall ((v_ArrVal_785 Int)) (= (let ((.cse125 (store .cse4 .cse5 v_ArrVal_785))) (let ((.cse122 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse125))) (let ((.cse123 (select .cse122 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse121 (select .cse123 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse124 (select .cse125 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse121 (select (select (store .cse122 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse123 .cse14 (+ .cse121 .cse124))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse124))))) .cse7))) (or .cse48 (forall ((v_ArrVal_785 Int)) (= .cse7 (let ((.cse130 (store .cse4 .cse89 v_ArrVal_785))) (let ((.cse127 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse130))) (let ((.cse128 (select .cse127 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse126 (select .cse128 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse129 (select .cse130 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse126 (select (select (store .cse127 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse128 .cse14 (+ .cse126 .cse129))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse129))))))))) .cse0)))))) is different from true [2022-11-21 13:48:44,447 WARN L233 SmtUtils]: Spent 1.14m on a formula simplification. DAG size of input: 216 DAG size of output: 143 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 13:48:46,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:48:48,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:49:01,388 WARN L233 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 145 DAG size of output: 139 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 13:49:03,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:49:05,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:49:09,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2022-11-21 13:49:31,850 WARN L233 SmtUtils]: Spent 17.72s on a formula simplification. DAG size of input: 201 DAG size of output: 178 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 13:49:37,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:49:39,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:49:40,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:49:54,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:50:19,307 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse64 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse97 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse60 (* .cse97 8)) (.cse95 (mod .cse64 4294967296)) (.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse96 (* 8 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)))) (let ((.cse21 (+ 8 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse43 (<= .cse97 2147483647)) (.cse24 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse13 (select .cse1 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse96))) (.cse14 (select .cse4 (+ .cse96 |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse33 (<= .cse95 2147483647)) (.cse63 (* .cse95 8)) (.cse94 (+ .cse60 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse5 (+ .cse60 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse8 (select .cse1 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse3 (select .cse1 .cse94)) (.cse2 (+ .cse63 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse57 (* |c_ULTIMATE.start_main_~i~0#1| |c_ULTIMATE.start_main_~i~0#1|)) (.cse58 (* |c_ULTIMATE.start_main_~i~0#1| |c_ULTIMATE.start_main_~i~0#1| |c_ULTIMATE.start_main_~i~0#1|)) (.cse32 (not .cse33)) (.cse31 (+ .cse63 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse42 (+ .cse63 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse11 (<= (mod c_~N~0 4294967296) 536870911)) (.cse12 (store .cse1 .cse94 (+ .cse13 .cse14))) (.cse6 (+ 16 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse10 (select .cse4 .cse24)) (.cse0 (not (< 2 c_~N~0))) (.cse30 (+ .cse60 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse44 (not .cse43)) (.cse7 (+ c_~N~0 8)) (.cse28 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse29 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse41 (+ .cse60 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse52 (< 3 c_~N~0)) (.cse15 (select .cse1 .cse21))) (and (or .cse0 (= (select (store .cse1 .cse2 (+ .cse3 (select .cse4 .cse5))) .cse6) .cse7)) (= c_~N~0 .cse8) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (let ((.cse9 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) 0))) (and (not (= |ULTIMATE.start_main_~a~0#1.base| |c_ULTIMATE.start_main_~c~0#1.base|)) (= (+ .cse9 1) .cse10) (= 6 .cse9)))) .cse11 (or .cse0 (= (select (store .cse12 .cse2 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse12) |c_ULTIMATE.start_main_~b~0#1.base|) .cse5) .cse13 .cse14)) .cse6) .cse7)) (= (+ .cse8 1) .cse15) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int) (|ULTIMATE.start_main_~b~0#1.base| Int)) (let ((.cse17 (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse16 (select .cse17 8)) (.cse18 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) 0))) (and (= (select .cse1 .cse6) (+ .cse16 .cse15)) (= (select .cse17 0) 1) (= .cse16 (+ .cse18 1)) (= 6 .cse18))))) (or (and (or (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int) (v_ArrVal_780 Int)) (= (let ((.cse27 (store (store .cse29 .cse30 v_ArrVal_780) .cse31 v_ArrVal_782))) (let ((.cse25 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse27))) (let ((.cse26 (select .cse25 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse23 (select .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse19 (store .cse25 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse26 .cse24 (+ (select .cse27 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse23)) .cse28 v_ArrVal_785)))) (let ((.cse20 (select .cse19 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse22 (select .cse20 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ (select (select (store .cse19 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse20 .cse21 (+ .cse22 .cse23))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse24) .cse22 .cse23)))))))) .cse7)) .cse32) (or .cse33 (and (or (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int) (v_ArrVal_780 Int)) (= .cse7 (let ((.cse40 (store (store .cse29 .cse41 v_ArrVal_780) .cse42 v_ArrVal_782))) (let ((.cse38 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse40))) (let ((.cse39 (select .cse38 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse37 (select .cse39 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse34 (store .cse38 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse39 .cse24 (+ .cse37 (select .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse28 v_ArrVal_785)))) (let ((.cse35 (select .cse34 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse36 (select .cse35 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ (select (select (store .cse34 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse35 .cse21 (+ .cse36 .cse37))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse24) .cse36 .cse37)))))))))) .cse43) (or .cse44 (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int) (v_ArrVal_780 Int)) (= (let ((.cse51 (store (store .cse29 .cse30 v_ArrVal_780) .cse42 v_ArrVal_782))) (let ((.cse49 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse51))) (let ((.cse50 (select .cse49 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse45 (select .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse47 (store .cse49 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse50 .cse24 (+ (select .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse45)) .cse28 v_ArrVal_785)))) (let ((.cse48 (select .cse47 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse46 (select .cse48 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse45 .cse46 (select (select (store .cse47 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse48 .cse21 (+ .cse45 .cse46))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse24))))))))) .cse7)))))) .cse0 .cse52) (let ((.cse53 (+ 2 |c_ULTIMATE.start_main_~i~0#1|))) (or (not (< .cse53 c_~N~0)) (let ((.cse59 (mod .cse53 4294967296))) (let ((.cse54 (<= .cse59 2147483647)) (.cse55 (* 8 .cse59)) (.cse56 (+ (* 6 .cse57) c_~N~0 .cse58 8 (* 12 |c_ULTIMATE.start_main_~i~0#1|)))) (and (or .cse54 (= (select .cse1 (+ .cse55 |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368))) .cse56)) (or (not .cse54) (= (select .cse1 (+ .cse55 |c_ULTIMATE.start_main_~c~0#1.offset|)) .cse56))))))) (or (not (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (let ((.cse61 (+ c_~N~0 .cse58))) (and (or .cse43 (= (select .cse1 (+ .cse60 |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368))) .cse61)) (or (= .cse3 .cse61) .cse44)))) (or (let ((.cse62 (+ c_~N~0 (* 3 .cse57) (* 3 |c_ULTIMATE.start_main_~i~0#1|) .cse58 1))) (and (or .cse33 (= .cse62 (select .cse1 (+ .cse63 |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368))))) (or .cse32 (= .cse62 (select .cse1 .cse2))))) (not (< .cse64 c_~N~0))) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (or (and (or .cse32 (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int)) (= (let ((.cse71 (store .cse29 .cse31 v_ArrVal_782))) (let ((.cse69 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse71))) (let ((.cse70 (select .cse69 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse68 (select .cse70 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse65 (store .cse69 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse70 .cse24 (+ (select .cse71 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse68)) .cse28 v_ArrVal_785)))) (let ((.cse66 (select .cse65 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse67 (select .cse66 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ (select (select (store .cse65 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse66 .cse21 (+ .cse67 .cse68))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse24) .cse67 .cse68)))))))) .cse7))) (or .cse33 (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int)) (= .cse7 (let ((.cse78 (store .cse29 .cse42 v_ArrVal_782))) (let ((.cse76 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse78))) (let ((.cse77 (select .cse76 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse73 (select .cse77 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse74 (store .cse76 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse77 .cse24 (+ (select .cse78 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse73)) .cse28 v_ArrVal_785)))) (let ((.cse75 (select .cse74 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse72 (select .cse75 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse72 .cse73 (select (select (store .cse74 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse75 .cse21 (+ .cse72 .cse73))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse24))))))))))))) .cse0 .cse52) (= (select .cse4 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (or (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 1) .cse11) (and (not .cse11) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0))) (= 6 (select .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|)) (not (= |c_ULTIMATE.start_main_~a~0#1.base| |c_ULTIMATE.start_main_~c~0#1.base|)) (not .cse52) (or (= (select .cse12 .cse6) .cse7) .cse0) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (let ((.cse79 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) 0))) (and (= (+ .cse79 1) .cse10) (= 6 .cse79)))) (= 3 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~c~0#1.offset| 0) (or .cse0 (and (or (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int)) (= (let ((.cse86 (store .cse29 .cse30 v_ArrVal_782))) (let ((.cse84 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse86))) (let ((.cse85 (select .cse84 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse82 (select .cse85 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse80 (store .cse84 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse85 .cse24 (+ (select .cse86 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse82)) .cse28 v_ArrVal_785)))) (let ((.cse81 (select .cse80 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse83 (select .cse81 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ (select (select (store .cse80 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse81 .cse21 (+ .cse82 .cse83))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse24) .cse82 .cse83)))))))) .cse7)) .cse44) (or .cse43 (forall ((v_ArrVal_785 Int) (v_ArrVal_782 Int)) (= .cse7 (let ((.cse93 (store .cse29 .cse41 v_ArrVal_782))) (let ((.cse91 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse93))) (let ((.cse92 (select .cse91 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse87 (select .cse92 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse88 (store .cse91 |c_ULTIMATE.start_main_~b~0#1.base| (store (store .cse92 .cse24 (+ .cse87 (select .cse93 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse28 v_ArrVal_785)))) (let ((.cse89 (select .cse88 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse90 (select .cse89 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse87 (select (select (store .cse88 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse89 .cse21 (+ .cse87 .cse90))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse24) .cse90)))))))))))) .cse52) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= .cse15 (+ c_~N~0 1)) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~c~0#1.base|))))))) is different from true [2022-11-21 13:50:21,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:50:23,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 13:50:29,197 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse69 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse83 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse68 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse55 (* 8 .cse68)) (.cse80 (* .cse83 8)) (.cse82 (mod .cse69 4294967296))) (let ((.cse53 (<= .cse83 2147483647)) (.cse33 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse9 (<= .cse82 2147483647)) (.cse3 (+ .cse80 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse27 (select .cse1 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse55))) (.cse28 (select .cse4 (+ .cse55 |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse81 (* .cse82 8))) (let ((.cse2 (+ .cse81 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse25 (<= (mod c_~N~0 4294967296) 536870911)) (.cse26 (store .cse1 .cse3 (+ .cse27 .cse28))) (.cse6 (+ 16 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse17 (+ .cse81 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse18 (not .cse9)) (.cse24 (+ .cse81 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse8 (< .cse33 c_~N~0)) (.cse46 (not .cse53)) (.cse5 (+ .cse80 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse7 (+ c_~N~0 8)) (.cse14 (+ 8 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse15 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse52 (+ .cse80 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse0 (not (< 2 c_~N~0)))) (and (or .cse0 (= (select (store .cse1 .cse2 (+ (select .cse1 .cse3) (select .cse4 .cse5))) .cse6) .cse7)) (or (= (select .cse1 .cse6) .cse7) .cse0) (or .cse8 .cse0 (and (or .cse9 (forall ((v_ArrVal_785 Int)) (= (let ((.cse16 (store .cse4 .cse17 v_ArrVal_785))) (let ((.cse12 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse16))) (let ((.cse13 (select .cse12 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse10 (select .cse16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse11 (select .cse13 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse10 .cse11 (select (select (store .cse12 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse13 .cse14 (+ .cse10 .cse11))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15)))))) .cse7))) (or .cse18 (forall ((v_ArrVal_785 Int)) (= (let ((.cse23 (store .cse4 .cse24 v_ArrVal_785))) (let ((.cse19 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse23))) (let ((.cse20 (select .cse19 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse21 (select .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse22 (select .cse20 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ (select (select (store .cse19 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse20 .cse14 (+ .cse21 .cse22))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse21 .cse22))))) .cse7))))) .cse25 (or .cse0 (= (select (store .cse26 .cse2 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse26) |c_ULTIMATE.start_main_~b~0#1.base|) .cse5) .cse27 .cse28)) .cse6) .cse7)) (or (not .cse8) (let ((.cse32 (mod .cse33 4294967296))) (let ((.cse29 (<= .cse32 2147483647)) (.cse30 (* 8 .cse32)) (.cse31 (+ (* 6 (* |c_ULTIMATE.start_main_~i~0#1| |c_ULTIMATE.start_main_~i~0#1|)) c_~N~0 (* |c_ULTIMATE.start_main_~i~0#1| |c_ULTIMATE.start_main_~i~0#1| |c_ULTIMATE.start_main_~i~0#1|) 8 (* 12 |c_ULTIMATE.start_main_~i~0#1|)))) (and (or .cse29 (= (select .cse1 (+ .cse30 |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368))) .cse31)) (or (not .cse29) (= (select .cse1 (+ .cse30 |c_ULTIMATE.start_main_~c~0#1.offset|)) .cse31)))))) (or (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 1) .cse25) (and (not .cse25) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0))) (or (= (select .cse26 .cse6) .cse7) .cse0) (or (let ((.cse54 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse56 (<= .cse68 2147483647))) (and (or (let ((.cse45 (+ .cse28 (select .cse54 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse55))))) (and (or (let ((.cse39 (store .cse4 .cse5 .cse45))) (and (or (forall ((v_ArrVal_785 Int)) (= (let ((.cse38 (store .cse39 .cse24 v_ArrVal_785))) (let ((.cse35 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse38))) (let ((.cse36 (select .cse35 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse34 (select .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse37 (select .cse36 |c_ULTIMATE.start_main_~c~0#1.offset|))) (+ .cse34 (select (select (store .cse35 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse36 .cse14 (+ .cse34 .cse37))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse37))))) .cse7)) .cse18) (or .cse9 (forall ((v_ArrVal_785 Int)) (= (let ((.cse44 (store .cse39 .cse17 v_ArrVal_785))) (let ((.cse42 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse44))) (let ((.cse43 (select .cse42 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse40 (select .cse43 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse41 (select .cse44 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse40 .cse41 (select (select (store .cse42 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse43 .cse14 (+ .cse40 .cse41))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15)))))) .cse7))))) .cse46) (or (forall ((v_ArrVal_785 Int)) (= (let ((.cse51 (store (store .cse4 .cse52 .cse45) .cse17 v_ArrVal_785))) (let ((.cse47 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse51))) (let ((.cse48 (select .cse47 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse49 (select .cse48 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse50 (select .cse51 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ (select (select (store .cse47 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse48 .cse14 (+ .cse49 .cse50))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse49 .cse50))))) .cse7)) .cse53))) (not .cse56)) (or (let ((.cse62 (+ (select .cse54 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse55)) (select .cse4 (+ (- 34359738368) .cse55 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or (and (forall ((v_ArrVal_785 Int)) (= (let ((.cse61 (store (store .cse4 .cse52 .cse62) .cse17 v_ArrVal_785))) (let ((.cse58 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse61))) (let ((.cse59 (select .cse58 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse57 (select .cse59 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse60 (select .cse61 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse57 (select (select (store .cse58 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse59 .cse14 (+ .cse57 .cse60))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse60))))) .cse7)) .cse18) .cse53) (or .cse46 (forall ((v_ArrVal_785 Int)) (= (let ((.cse67 (store (store .cse4 .cse5 .cse62) .cse24 v_ArrVal_785))) (let ((.cse65 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse67))) (let ((.cse66 (select .cse65 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse63 (select .cse66 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse64 (select .cse67 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse63 .cse64 (select (select (store .cse65 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse66 .cse14 (+ .cse63 .cse64))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15)))))) .cse7))))) .cse56))) .cse8 .cse0) (or (< .cse69 c_~N~0) (and (or .cse46 (forall ((v_ArrVal_785 Int)) (= (let ((.cse74 (store .cse4 .cse5 v_ArrVal_785))) (let ((.cse71 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse74))) (let ((.cse72 (select .cse71 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse70 (select .cse72 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse73 (select .cse74 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse70 (select (select (store .cse71 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse72 .cse14 (+ .cse70 .cse73))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse73))))) .cse7))) (or .cse53 (forall ((v_ArrVal_785 Int)) (= .cse7 (let ((.cse79 (store .cse4 .cse52 v_ArrVal_785))) (let ((.cse76 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse79))) (let ((.cse77 (select .cse76 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse75 (select .cse77 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse78 (select .cse79 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse75 (select (select (store .cse76 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse77 .cse14 (+ .cse75 .cse78))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse15) .cse78))))))))) .cse0)))))) is different from true [2022-11-21 13:51:28,888 WARN L233 SmtUtils]: Spent 54.91s on a formula simplification. DAG size of input: 210 DAG size of output: 152 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 13:52:49,083 WARN L233 SmtUtils]: Spent 1.29m on a formula simplification. DAG size of input: 213 DAG size of output: 156 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 13:53:18,759 WARN L233 SmtUtils]: Spent 14.47s on a formula simplification. DAG size of input: 141 DAG size of output: 138 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 13:53:22,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2022-11-21 13:53:24,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2022-11-21 13:53:51,111 WARN L233 SmtUtils]: Spent 22.79s on a formula simplification. DAG size of input: 151 DAG size of output: 148 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 13:53:53,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2022-11-21 13:53:55,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-21 13:54:11,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:11,798 INFO L93 Difference]: Finished difference Result 151 states and 166 transitions. [2022-11-21 13:54:11,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-21 13:54:11,799 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 37 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-21 13:54:11,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:11,800 INFO L225 Difference]: With dead ends: 151 [2022-11-21 13:54:11,800 INFO L226 Difference]: Without dead ends: 149 [2022-11-21 13:54:11,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2462 ImplicationChecksByTransitivity, 403.9s TimeCoverageRelationStatistics Valid=1090, Invalid=7461, Unknown=17, NotChecked=552, Total=9120 [2022-11-21 13:54:11,805 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 360 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 203 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 44.8s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:11,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 262 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 631 Invalid, 9 Unknown, 21 Unchecked, 44.8s Time] [2022-11-21 13:54:11,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-21 13:54:11,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 99. [2022-11-21 13:54:11,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.1224489795918366) internal successors, (110), 98 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:11,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 110 transitions. [2022-11-21 13:54:11,884 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 110 transitions. Word has length 34 [2022-11-21 13:54:11,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:11,884 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 110 transitions. [2022-11-21 13:54:11,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 37 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 110 transitions. [2022-11-21 13:54:11,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-21 13:54:11,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:11,887 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:54:11,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-21 13:54:12,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-21 13:54:12,098 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:54:12,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:12,099 INFO L85 PathProgramCache]: Analyzing trace with hash 50405386, now seen corresponding path program 4 times [2022-11-21 13:54:12,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:12,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423639070] [2022-11-21 13:54:12,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:12,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:12,148 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:54:12,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [881401884] [2022-11-21 13:54:12,162 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 13:54:12,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:54:12,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:54:12,175 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:54:12,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-21 13:54:12,329 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 13:54:12,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:54:12,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 13:54:12,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:54:12,553 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-21 13:54:12,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:54:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-21 13:54:12,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:12,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423639070] [2022-11-21 13:54:12,709 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-21 13:54:12,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881401884] [2022-11-21 13:54:12,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881401884] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:54:12,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 13:54:12,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-21 13:54:12,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015727672] [2022-11-21 13:54:12,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 13:54:12,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 13:54:12,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:12,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 13:54:12,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-21 13:54:12,712 INFO L87 Difference]: Start difference. First operand 99 states and 110 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:13,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:13,477 INFO L93 Difference]: Finished difference Result 143 states and 154 transitions. [2022-11-21 13:54:13,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 13:54:13,477 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-21 13:54:13,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:13,479 INFO L225 Difference]: With dead ends: 143 [2022-11-21 13:54:13,479 INFO L226 Difference]: Without dead ends: 112 [2022-11-21 13:54:13,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2022-11-21 13:54:13,485 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 101 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:13,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 68 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 13:54:13,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-21 13:54:13,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 75. [2022-11-21 13:54:13,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.0945945945945945) internal successors, (81), 74 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:13,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2022-11-21 13:54:13,547 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 34 [2022-11-21 13:54:13,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:13,548 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2022-11-21 13:54:13,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:13,548 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2022-11-21 13:54:13,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-21 13:54:13,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:13,551 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:54:13,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-21 13:54:13,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-21 13:54:13,760 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:54:13,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:13,761 INFO L85 PathProgramCache]: Analyzing trace with hash -968725112, now seen corresponding path program 5 times [2022-11-21 13:54:13,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:13,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075797899] [2022-11-21 13:54:13,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:13,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:13,828 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-21 13:54:13,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1662794156] [2022-11-21 13:54:13,829 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-21 13:54:13,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:54:13,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:54:13,831 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:54:13,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42dcd693-8827-409e-b522-559a05f39162/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process