./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ss2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ss2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc --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 e3a2069d11be89fa2c8e98300820eccf9d61bcc6c7ca5fd30afcaf42942b8548 --- 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-5e519f3 [2022-11-02 20:24:22,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:24:22,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:24:22,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:24:22,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:24:22,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:24:22,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:24:22,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:24:22,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:24:22,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:24:23,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:24:23,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:24:23,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:24:23,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:24:23,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:24:23,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:24:23,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:24:23,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:24:23,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:24:23,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:24:23,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:24:23,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:24:23,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:24:23,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:24:23,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:24:23,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:24:23,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:24:23,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:24:23,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:24:23,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:24:23,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:24:23,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:24:23,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:24:23,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:24:23,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:24:23,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:24:23,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:24:23,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:24:23,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:24:23,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:24:23,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:24:23,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:24:23,060 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:24:23,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:24:23,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:24:23,061 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:24:23,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:24:23,062 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:24:23,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:24:23,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:24:23,063 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:24:23,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:24:23,064 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:24:23,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:24:23,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:24:23,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:24:23,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:24:23,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:24:23,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:24:23,065 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:24:23,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:24:23,066 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:24:23,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:24:23,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:24:23,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:24:23,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:24:23,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:24:23,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:24:23,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:24:23,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:24:23,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:24:23,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:24:23,068 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:24:23,068 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:24:23,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:24:23,069 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_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3a2069d11be89fa2c8e98300820eccf9d61bcc6c7ca5fd30afcaf42942b8548 [2022-11-02 20:24:23,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:24:23,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:24:23,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:24:23,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:24:23,326 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:24:23,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/array-fpi/ss2.c [2022-11-02 20:24:23,420 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/data/d20436ce1/4c975691408f492c9966b1b4d82ee96e/FLAGf47501d6b [2022-11-02 20:24:23,962 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:24:23,967 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/sv-benchmarks/c/array-fpi/ss2.c [2022-11-02 20:24:23,975 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/data/d20436ce1/4c975691408f492c9966b1b4d82ee96e/FLAGf47501d6b [2022-11-02 20:24:24,318 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/data/d20436ce1/4c975691408f492c9966b1b4d82ee96e [2022-11-02 20:24:24,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:24:24,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:24:24,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:24:24,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:24:24,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:24:24,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6518849a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24, skipping insertion in model container [2022-11-02 20:24:24,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:24:24,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:24:24,575 WARN L230 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_e39293e4-86d8-4ffc-9d34-64e7885cd10d/sv-benchmarks/c/array-fpi/ss2.c[586,599] [2022-11-02 20:24:24,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:24:24,620 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:24:24,638 WARN L230 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_e39293e4-86d8-4ffc-9d34-64e7885cd10d/sv-benchmarks/c/array-fpi/ss2.c[586,599] [2022-11-02 20:24:24,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:24:24,689 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:24:24,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24 WrapperNode [2022-11-02 20:24:24,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:24:24,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:24:24,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:24:24,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:24:24,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,756 INFO L138 Inliner]: procedures = 17, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 125 [2022-11-02 20:24:24,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:24:24,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:24:24,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:24:24,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:24:24,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,810 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:24:24,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:24:24,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:24:24,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:24:24,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24" (1/1) ... [2022-11-02 20:24:24,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:24:24,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:24,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:24:24,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:24:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:24:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:24:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:24:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:24:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:24:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:24:24,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:24:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:24:24,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:24:24,986 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:24:24,989 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:24:25,247 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:24:25,253 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:24:25,264 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-02 20:24:25,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:24:25 BoogieIcfgContainer [2022-11-02 20:24:25,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:24:25,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:24:25,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:24:25,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:24:25,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:24:24" (1/3) ... [2022-11-02 20:24:25,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e15376c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:24:25, skipping insertion in model container [2022-11-02 20:24:25,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:24:24" (2/3) ... [2022-11-02 20:24:25,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e15376c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:24:25, skipping insertion in model container [2022-11-02 20:24:25,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:24:25" (3/3) ... [2022-11-02 20:24:25,290 INFO L112 eAbstractionObserver]: Analyzing ICFG ss2.c [2022-11-02 20:24:25,311 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:24:25,311 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:24:25,360 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:24:25,367 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;@7fbf7726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:24:25,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:24:25,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:25,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:24:25,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:25,380 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] [2022-11-02 20:24:25,381 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:24:25,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:25,386 INFO L85 PathProgramCache]: Analyzing trace with hash -642180410, now seen corresponding path program 1 times [2022-11-02 20:24:25,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:25,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982185077] [2022-11-02 20:24:25,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:25,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:25,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:25,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982185077] [2022-11-02 20:24:25,535 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:24:25,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707949030] [2022-11-02 20:24:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:25,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:25,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:25,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:25,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:24:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:25,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 20:24:25,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:25,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:25,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:24:25,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707949030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:25,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:25,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:24:25,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90346407] [2022-11-02 20:24:25,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:25,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:24:25,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:25,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:24:25,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:24:25,794 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 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 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:25,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:25,826 INFO L93 Difference]: Finished difference Result 62 states and 92 transitions. [2022-11-02 20:24:25,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:24:25,830 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 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 [2022-11-02 20:24:25,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:25,852 INFO L225 Difference]: With dead ends: 62 [2022-11-02 20:24:25,853 INFO L226 Difference]: Without dead ends: 29 [2022-11-02 20:24:25,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:24:25,867 INFO L413 NwaCegarLoop]: 40 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, 40 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 [2022-11-02 20:24:25,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:24:25,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-02 20:24:25,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-02 20:24:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.25) internal successors, (35), 28 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) [2022-11-02 20:24:25,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-11-02 20:24:25,923 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 20 [2022-11-02 20:24:25,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:25,923 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-11-02 20:24:25,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:25,924 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-11-02 20:24:25,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:24:25,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:25,925 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] [2022-11-02 20:24:25,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:26,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-02 20:24:26,139 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:24:26,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:26,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1011332042, now seen corresponding path program 1 times [2022-11-02 20:24:26,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:26,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162088103] [2022-11-02 20:24:26,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:26,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:26,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:26,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162088103] [2022-11-02 20:24:26,191 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:24:26,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238542566] [2022-11-02 20:24:26,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:26,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:26,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:26,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:26,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:24:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:26,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:24:26,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:26,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:26,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:24:26,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238542566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:24:26,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:24:26,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:24:26,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771131623] [2022-11-02 20:24:26,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:24:26,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:24:26,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:26,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:24:26,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:24:26,359 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:26,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:26,501 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2022-11-02 20:24:26,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:24:26,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 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 [2022-11-02 20:24:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:26,505 INFO L225 Difference]: With dead ends: 69 [2022-11-02 20:24:26,505 INFO L226 Difference]: Without dead ends: 47 [2022-11-02 20:24:26,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:24:26,508 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 53 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:26,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 19 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:24:26,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-02 20:24:26,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2022-11-02 20:24:26,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:26,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-11-02 20:24:26,519 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 20 [2022-11-02 20:24:26,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:26,519 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-11-02 20:24:26,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:26,520 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2022-11-02 20:24:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 20:24:26,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:26,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:26,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:26,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:26,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:24:26,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:26,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1890076394, now seen corresponding path program 1 times [2022-11-02 20:24:26,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:26,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931861759] [2022-11-02 20:24:26,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:26,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:26,772 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:24:26,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [326352694] [2022-11-02 20:24:26,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:26,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:26,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:26,774 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:26,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:24:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:26,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-02 20:24:26,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:26,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 20:24:27,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:27,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-02 20:24:27,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:27,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 23 [2022-11-02 20:24:27,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:27,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 21 [2022-11-02 20:24:27,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:27,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 23 [2022-11-02 20:24:27,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:27,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 23 [2022-11-02 20:24:27,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:27,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:24:27,726 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 29 [2022-11-02 20:24:28,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:28,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2022-11-02 20:24:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:28,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:24:30,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:24:30,435 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:30,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:30,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931861759] [2022-11-02 20:24:30,437 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:24:30,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326352694] [2022-11-02 20:24:30,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326352694] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:24:30,437 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:24:30,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 33 [2022-11-02 20:24:30,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765826062] [2022-11-02 20:24:30,440 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:24:30,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-02 20:24:30,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:30,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-02 20:24:30,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=914, Unknown=0, NotChecked=0, Total=1056 [2022-11-02 20:24:30,445 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 33 states, 33 states have (on average 1.8181818181818181) internal successors, (60), 33 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:37,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:37,125 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2022-11-02 20:24:37,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-02 20:24:37,125 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 1.8181818181818181) internal successors, (60), 33 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-02 20:24:37,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:37,128 INFO L225 Difference]: With dead ends: 79 [2022-11-02 20:24:37,128 INFO L226 Difference]: Without dead ends: 77 [2022-11-02 20:24:37,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=288, Invalid=1874, Unknown=0, NotChecked=0, Total=2162 [2022-11-02 20:24:37,130 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 64 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:37,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 145 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 553 Invalid, 0 Unknown, 66 Unchecked, 2.3s Time] [2022-11-02 20:24:37,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-02 20:24:37,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 58. [2022-11-02 20:24:37,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 57 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2022-11-02 20:24:37,147 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 32 [2022-11-02 20:24:37,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:37,148 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2022-11-02 20:24:37,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.8181818181818181) internal successors, (60), 33 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2022-11-02 20:24:37,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-02 20:24:37,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:37,150 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:37,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:37,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-02 20:24:37,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:24:37,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:37,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1237633832, now seen corresponding path program 2 times [2022-11-02 20:24:37,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:37,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833854855] [2022-11-02 20:24:37,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:37,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:37,420 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:24:37,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037503165] [2022-11-02 20:24:37,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:24:37,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:37,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:37,423 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:37,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:24:37,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:24:37,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:24:37,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:24:37,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:37,615 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:24:37,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:24:37,676 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:24:37,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:37,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833854855] [2022-11-02 20:24:37,676 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:24:37,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037503165] [2022-11-02 20:24:37,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037503165] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:24:37,677 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:24:37,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-02 20:24:37,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790688176] [2022-11-02 20:24:37,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:24:37,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:24:37,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:37,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:24:37,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:24:37,679 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 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) [2022-11-02 20:24:38,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:38,014 INFO L93 Difference]: Finished difference Result 156 states and 186 transitions. [2022-11-02 20:24:38,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:24:38,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 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 34 [2022-11-02 20:24:38,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:38,031 INFO L225 Difference]: With dead ends: 156 [2022-11-02 20:24:38,031 INFO L226 Difference]: Without dead ends: 85 [2022-11-02 20:24:38,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:24:38,032 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 69 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:38,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 54 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:24:38,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-02 20:24:38,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 62. [2022-11-02 20:24:38,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.180327868852459) internal successors, (72), 61 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:38,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2022-11-02 20:24:38,044 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 34 [2022-11-02 20:24:38,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:38,044 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2022-11-02 20:24:38,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 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) [2022-11-02 20:24:38,045 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2022-11-02 20:24:38,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:24:38,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:38,046 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:38,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:38,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:38,267 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:24:38,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:38,268 INFO L85 PathProgramCache]: Analyzing trace with hash 999316006, now seen corresponding path program 3 times [2022-11-02 20:24:38,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:38,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056539675] [2022-11-02 20:24:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:38,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:38,317 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:24:38,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755485066] [2022-11-02 20:24:38,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:24:38,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:38,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:38,332 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:38,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:24:38,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-02 20:24:38,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:24:38,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:24:38,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-02 20:24:38,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:24:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-02 20:24:38,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:38,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056539675] [2022-11-02 20:24:38,571 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:24:38,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755485066] [2022-11-02 20:24:38,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755485066] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:24:38,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:24:38,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-02 20:24:38,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830368972] [2022-11-02 20:24:38,572 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:24:38,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:24:38,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:38,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:24:38,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:24:38,574 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 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) [2022-11-02 20:24:38,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:38,804 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2022-11-02 20:24:38,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:24:38,805 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 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 36 [2022-11-02 20:24:38,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:38,806 INFO L225 Difference]: With dead ends: 81 [2022-11-02 20:24:38,806 INFO L226 Difference]: Without dead ends: 64 [2022-11-02 20:24:38,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:24:38,807 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 92 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:38,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 40 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:24:38,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-02 20:24:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 47. [2022-11-02 20:24:38,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 46 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:38,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2022-11-02 20:24:38,823 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 36 [2022-11-02 20:24:38,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:38,823 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2022-11-02 20:24:38,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 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) [2022-11-02 20:24:38,824 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2022-11-02 20:24:38,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-02 20:24:38,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:38,827 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:24:38,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:39,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:39,043 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:24:39,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:39,044 INFO L85 PathProgramCache]: Analyzing trace with hash 772187038, now seen corresponding path program 4 times [2022-11-02 20:24:39,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:39,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326047849] [2022-11-02 20:24:39,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:39,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:39,098 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:24:39,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [798658893] [2022-11-02 20:24:39,099 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:24:39,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:39,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:39,117 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:39,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:24:39,251 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:24:39,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:24:39,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 92 conjunts are in the unsatisfiable core [2022-11-02 20:24:39,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:39,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 20:24:39,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 20:24:39,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 22 [2022-11-02 20:24:39,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:39,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:24:39,401 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:24:39,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2022-11-02 20:24:39,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:39,584 INFO L356 Elim1Store]: treesize reduction 96, result has 19.3 percent of original size [2022-11-02 20:24:39,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 50 [2022-11-02 20:24:39,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:39,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:39,743 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-02 20:24:39,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 58 [2022-11-02 20:24:40,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:24:40,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:40,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:24:40,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:40,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:24:40,199 INFO L356 Elim1Store]: treesize reduction 35, result has 23.9 percent of original size [2022-11-02 20:24:40,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 72 [2022-11-02 20:24:40,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:40,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:24:40,394 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-11-02 20:24:40,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 49 [2022-11-02 20:24:40,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:24:40,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:40,627 INFO L356 Elim1Store]: treesize reduction 30, result has 33.3 percent of original size [2022-11-02 20:24:40,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 53 treesize of output 55 [2022-11-02 20:24:40,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:40,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 49 treesize of output 35 [2022-11-02 20:24:40,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:24:41,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:41,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 39 [2022-11-02 20:24:41,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:41,181 INFO L356 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2022-11-02 20:24:41,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 53 treesize of output 37 [2022-11-02 20:24:41,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:24:41,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:41,429 INFO L356 Elim1Store]: treesize reduction 34, result has 24.4 percent of original size [2022-11-02 20:24:41,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 61 treesize of output 53 [2022-11-02 20:24:41,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:41,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:24:41,621 INFO L356 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-11-02 20:24:41,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 39 treesize of output 50 [2022-11-02 20:24:41,837 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 20:24:41,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 39 [2022-11-02 20:24:41,897 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:41,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:24:44,243 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_95| Int)) (or (forall ((v_ArrVal_257 Int)) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_95| 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_257) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (* c_~N~0 2) (* c_~N~0 c_~N~0)))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_95|)))) is different from false [2022-11-02 20:25:26,926 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~i~0#1| Int)) (or (forall ((v_ArrVal_257 Int) (|v_ULTIMATE.start_main_~i~0#1_95| Int)) (or (not (<= 1 |v_ULTIMATE.start_main_~i~0#1_95|)) (= (select (store (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse10 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse13 (* |ULTIMATE.start_main_~i~0#1| 8))) (let ((.cse11 (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse12 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ .cse11 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse11 .cse12))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse13 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse12))))))) (.cse6 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse9 (store (store (select .cse7 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| 0) .cse6 0))) (let ((.cse1 (select (select (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| .cse9) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse4 (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse8 (store .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| .cse1))) (store .cse8 .cse6 (select (select (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| .cse8) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse3 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse2 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6))) (let ((.cse0 (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 .cse2 .cse3 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|))))))))))) (+ (* |v_ULTIMATE.start_main_~i~0#1_95| 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_257) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (* c_~N~0 2) (* c_~N~0 c_~N~0))))) (not (< (+ |ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (< (+ 2 |ULTIMATE.start_main_~i~0#1|) c_~N~0))) is different from false [2022-11-02 20:27:03,811 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_257 Int) (|v_ULTIMATE.start_main_~i~0#1_110| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_95| Int)) (or (not (<= 1 |v_ULTIMATE.start_main_~i~0#1_95|)) (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) ~N~0) (not (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) ~N~0)) (= (select (store (let ((.cse7 (let ((.cse15 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse15))) (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse11 (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse14 (* 8 |v_ULTIMATE.start_main_~i~0#1_110|))) (let ((.cse12 (select .cse15 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse14))) (.cse13 (select .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse12 (select (select (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse12 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset| .cse14)) .cse13))))))))) (.cse6 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse9 (store (store (select .cse7 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| 0) .cse6 0))) (let ((.cse3 (select (select (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| .cse9) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse4 (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse8 (store .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| .cse3))) (store .cse8 .cse6 (select (select (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| .cse8) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse2 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6))) (let ((.cse0 (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse2 .cse3)))))))))) (+ (* |v_ULTIMATE.start_main_~i~0#1_95| 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_257) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (* 2 ~N~0) (* ~N~0 ~N~0))) (not (< (+ |v_ULTIMATE.start_main_~i~0#1_110| 1) ~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_110|) ~N~0))) is different from false [2022-11-02 20:27:06,335 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_257 Int) (|v_ULTIMATE.start_main_~i~0#1_110| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_95| Int)) (or (not (<= 1 |v_ULTIMATE.start_main_~i~0#1_95|)) (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) ~N~0) (not (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) ~N~0)) (not (< (+ |v_ULTIMATE.start_main_~i~0#1_110| 1) ~N~0)) (= (+ (* 2 ~N~0) (* ~N~0 ~N~0)) (select (store (let ((.cse7 (let ((.cse15 (let ((.cse16 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ .cse16 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse15))) (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse11 (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse14 (* 8 |v_ULTIMATE.start_main_~i~0#1_110|))) (let ((.cse12 (select .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse13 (select .cse15 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse14)))) (+ .cse12 (select (select (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse12 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset| .cse14)) .cse13))))))))) (.cse6 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse9 (store (store (select .cse7 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| 0) .cse6 0))) (let ((.cse2 (select (select (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| .cse9) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse4 (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse8 (store .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| .cse2))) (store .cse8 .cse6 (select (select (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| .cse8) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse3 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse1 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6))) (let ((.cse0 (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse0 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse1 .cse2 .cse3)))))))))) (+ (* |v_ULTIMATE.start_main_~i~0#1_95| 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_257) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_110|) ~N~0))) is different from false [2022-11-02 20:27:06,391 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2022-11-02 20:27:06,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:06,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326047849] [2022-11-02 20:27:06,392 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:27:06,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798658893] [2022-11-02 20:27:06,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798658893] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:27:06,392 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:27:06,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 59 [2022-11-02 20:27:06,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93169930] [2022-11-02 20:27:06,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:27:06,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-11-02 20:27:06,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:06,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-11-02 20:27:06,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=2662, Unknown=59, NotChecked=436, Total=3422 [2022-11-02 20:27:06,396 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 59 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 59 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:08,537 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (and (= (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 0) (= |c_ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((v_ArrVal_257 Int) (|v_ULTIMATE.start_main_~i~0#1_110| Int) (~N~0 Int) (|v_ULTIMATE.start_main_~i~0#1_95| Int)) (or (not (<= 1 |v_ULTIMATE.start_main_~i~0#1_95|)) (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) ~N~0) (not (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) ~N~0)) (= (select (store (let ((.cse9 (let ((.cse17 (store .cse0 (+ .cse1 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (let ((.cse12 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse17))) (store .cse12 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse13 (select .cse12 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse13 |c_ULTIMATE.start_main_~#sum~0#1.offset| (let ((.cse16 (* 8 |v_ULTIMATE.start_main_~i~0#1_110|))) (let ((.cse14 (select .cse17 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse16))) (.cse15 (select .cse13 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse14 (select (select (store .cse12 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse13 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset| .cse16)) .cse15))))))))) (.cse8 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse11 (store (store (select .cse9 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| 0) .cse8 0))) (let ((.cse5 (select (select (store .cse9 |c_ULTIMATE.start_main_~a~0#1.base| .cse11) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse6 (store .cse9 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse10 (store .cse11 |c_ULTIMATE.start_main_~a~0#1.offset| .cse5))) (store .cse10 .cse8 (select (select (store .cse9 |c_ULTIMATE.start_main_~a~0#1.base| .cse10) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (let ((.cse7 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse3 (select .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse4 (select (select (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (let ((.cse2 (select (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse4 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse2 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse3 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse4 .cse5)))))))))) (+ (* |v_ULTIMATE.start_main_~i~0#1_95| 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_257) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (* 2 ~N~0) (* ~N~0 ~N~0))) (not (< (+ |v_ULTIMATE.start_main_~i~0#1_110| 1) ~N~0)) (< (+ 2 |v_ULTIMATE.start_main_~i~0#1_110|) ~N~0))))) is different from false [2022-11-02 20:27:39,787 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= (select .cse0 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2) (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int)) (= 6 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) 0))) (<= c_~N~0 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_95| Int)) (or (forall ((v_ArrVal_257 Int)) (= (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_95| 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_257) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (* c_~N~0 2) (* c_~N~0 c_~N~0)))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_95|)))) (= |c_ULTIMATE.start_main_~i~0#1| 0) (< 1 c_~N~0) (= (select .cse0 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|)) 8) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) is different from false [2022-11-02 20:27:41,799 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (exists ((|ULTIMATE.start_main_~#sum~0#1.base| Int)) (= 6 (select (select |c_#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) 0))) (<= c_~N~0 2) (forall ((|v_ULTIMATE.start_main_~i~0#1_95| Int)) (or (forall ((v_ArrVal_257 Int)) (= (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_95| 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_257) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ (* c_~N~0 2) (* c_~N~0 c_~N~0)))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_95|)))) (< 1 c_~N~0) (= 8 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) is different from false [2022-11-02 20:27:42,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:42,139 INFO L93 Difference]: Finished difference Result 113 states and 130 transitions. [2022-11-02 20:27:42,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-02 20:27:42,140 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 59 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-02 20:27:42,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:27:42,141 INFO L225 Difference]: With dead ends: 113 [2022-11-02 20:27:42,141 INFO L226 Difference]: Without dead ends: 111 [2022-11-02 20:27:42,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 177.5s TimeCoverageRelationStatistics Valid=320, Invalid=3424, Unknown=66, NotChecked=882, Total=4692 [2022-11-02 20:27:42,144 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 33 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1023 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:27:42,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 227 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 404 Invalid, 0 Unknown, 1023 Unchecked, 0.6s Time] [2022-11-02 20:27:42,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-02 20:27:42,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 104. [2022-11-02 20:27:42,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.174757281553398) internal successors, (121), 103 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:42,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 121 transitions. [2022-11-02 20:27:42,169 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 121 transitions. Word has length 44 [2022-11-02 20:27:42,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:27:42,169 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 121 transitions. [2022-11-02 20:27:42,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 59 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:42,170 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 121 transitions. [2022-11-02 20:27:42,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-02 20:27:42,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:42,171 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:42,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:42,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-02 20:27:42,395 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:27:42,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:42,396 INFO L85 PathProgramCache]: Analyzing trace with hash 236235548, now seen corresponding path program 5 times [2022-11-02 20:27:42,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:42,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143600275] [2022-11-02 20:27:42,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:42,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:42,458 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:27:42,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106388878] [2022-11-02 20:27:42,459 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-02 20:27:42,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:27:42,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:42,469 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:27:42,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 20:27:42,638 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-11-02 20:27:42,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:27:42,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:27:42,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:27:42,822 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-02 20:27:42,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:27:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-02 20:27:42,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:42,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143600275] [2022-11-02 20:27:42,966 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:27:42,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106388878] [2022-11-02 20:27:42,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106388878] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:27:42,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:27:42,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-02 20:27:42,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322363659] [2022-11-02 20:27:42,966 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:27:42,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:27:42,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:42,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:27:42,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:27:42,968 INFO L87 Difference]: Start difference. First operand 104 states and 121 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:43,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:43,477 INFO L93 Difference]: Finished difference Result 216 states and 247 transitions. [2022-11-02 20:27:43,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:27:43,478 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 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 46 [2022-11-02 20:27:43,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:27:43,479 INFO L225 Difference]: With dead ends: 216 [2022-11-02 20:27:43,479 INFO L226 Difference]: Without dead ends: 155 [2022-11-02 20:27:43,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 76 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:27:43,482 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 179 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:27:43,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 70 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:27:43,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-02 20:27:43,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 123. [2022-11-02 20:27:43,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.1147540983606556) internal successors, (136), 122 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:43,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2022-11-02 20:27:43,505 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 46 [2022-11-02 20:27:43,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:27:43,506 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2022-11-02 20:27:43,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:43,506 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2022-11-02 20:27:43,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-02 20:27:43,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:43,507 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:43,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:43,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:27:43,715 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:27:43,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:43,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1604826084, now seen corresponding path program 6 times [2022-11-02 20:27:43,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:43,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775381401] [2022-11-02 20:27:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:43,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:43,767 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:27:43,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029264759] [2022-11-02 20:27:43,767 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-02 20:27:43,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:27:43,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:43,774 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:27:43,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-02 20:27:43,905 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-11-02 20:27:43,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:27:43,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:27:43,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:27:44,057 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-02 20:27:44,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:27:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-02 20:27:44,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:44,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775381401] [2022-11-02 20:27:44,191 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:27:44,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029264759] [2022-11-02 20:27:44,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029264759] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:27:44,192 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:27:44,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-02 20:27:44,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860109483] [2022-11-02 20:27:44,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:27:44,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:27:44,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:44,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:27:44,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:27:44,194 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:44,884 INFO L93 Difference]: Finished difference Result 154 states and 165 transitions. [2022-11-02 20:27:44,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:27:44,886 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 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 46 [2022-11-02 20:27:44,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:27:44,887 INFO L225 Difference]: With dead ends: 154 [2022-11-02 20:27:44,887 INFO L226 Difference]: Without dead ends: 121 [2022-11-02 20:27:44,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 76 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-02 20:27:44,888 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 131 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:27:44,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 90 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 20:27:44,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-02 20:27:44,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 96. [2022-11-02 20:27:44,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.0842105263157895) internal successors, (103), 95 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:44,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 103 transitions. [2022-11-02 20:27:44,910 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 103 transitions. Word has length 46 [2022-11-02 20:27:44,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:27:44,910 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 103 transitions. [2022-11-02 20:27:44,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:44,911 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 103 transitions. [2022-11-02 20:27:44,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-02 20:27:44,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:44,912 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:44,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:45,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:27:45,125 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:27:45,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:45,126 INFO L85 PathProgramCache]: Analyzing trace with hash -977955692, now seen corresponding path program 1 times [2022-11-02 20:27:45,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:45,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792439231] [2022-11-02 20:27:45,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:45,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:45,162 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:27:45,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [252029529] [2022-11-02 20:27:45,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:45,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:27:45,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:45,168 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:27:45,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39293e4-86d8-4ffc-9d34-64e7885cd10d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-02 20:27:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:45,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-02 20:27:45,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:27:45,287 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 20:27:45,419 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-02 20:27:45,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:45,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-02 20:27:45,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:27:45,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:45,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-02 20:27:45,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:45,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 46 treesize of output 32 [2022-11-02 20:27:45,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 31 treesize of output 27 [2022-11-02 20:27:45,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 17 [2022-11-02 20:27:45,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:45,872 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 27 [2022-11-02 20:27:45,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:27:45,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:45,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 33 [2022-11-02 20:27:46,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:46,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 45 treesize of output 31 [2022-11-02 20:27:46,385 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:27:46,386 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 41 [2022-11-02 20:27:46,408 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-02 20:27:46,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:28:16,235 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:28:16,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 73 [2022-11-02 20:28:16,263 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (~N~0 Int)) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse0 (+ (* 2 ~N~0) (* ~N~0 ~N~0))) (.cse3 (+ (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) (or (= .cse0 (+ (select .cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select (select (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| .cse3)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (not (= .cse0 .cse3))))))) is different from false [2022-11-02 20:28:16,367 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (~N~0 Int)) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse5 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse4 .cse5 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse4 .cse5))))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse2 (select .cse3 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse0 (+ (* 2 ~N~0) (* ~N~0 ~N~0))) (.cse1 (+ (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) (or (not (= .cse0 .cse1)) (= .cse0 (+ (select .cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))))) is different from false [2022-11-02 20:28:16,441 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (~N~0 Int)) (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse5 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse4 .cse5 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse4 .cse5))))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse0 (+ (* 2 ~N~0) (* ~N~0 ~N~0))) (.cse3 (+ (select v_arrayElimArr_1 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (or (= .cse0 (+ (select .cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select (select (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| .cse3)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (not (= .cse0 .cse3))))))) is different from false [2022-11-02 20:28:16,513 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (~N~0 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse8 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (let ((.cse5 (+ .cse8 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (let ((.cse7 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse6 .cse7 (+ (select .cse6 .cse7) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))))) (store .cse4 .cse5 (+ (select .cse6 .cse5) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse2 (+ (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))) (.cse3 (+ (* 2 ~N~0) (* ~N~0 ~N~0)))) (or (= (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| .cse2)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) .cse3) (not (= .cse2 .cse3))))))) is different from false [2022-11-02 20:28:16,564 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (~N~0 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse4 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse5 (store .cse6 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (store .cse5 .cse4 (+ (select .cse6 .cse4) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse5) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse0 (+ (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))) (.cse1 (+ (* 2 ~N~0) (* ~N~0 ~N~0)))) (or (not (= .cse0 .cse1)) (= (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~a~0#1.offset| .cse0)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse3 .cse4)) .cse1))))))) is different from false [2022-11-02 20:28:16,762 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (~N~0 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse6 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))) (let ((.cse5 (store .cse6 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse6) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse5 .cse3 (+ (select .cse6 .cse3) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse5) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse4 (+ (* 2 ~N~0) (* ~N~0 ~N~0))) (.cse2 (+ (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|)))) (or (= (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| .cse2)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse1 .cse3)) .cse4) (not (= .cse4 .cse2)))))))) is different from false [2022-11-02 20:28:16,829 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (~N~0 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse6 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 0))) (let ((.cse5 (store .cse6 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse6) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (store .cse5 .cse3 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse5) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse6 .cse3)))))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse2 (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse0 (+ (* 2 ~N~0) (* ~N~0 ~N~0))) (.cse1 (+ (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|)))) (or (not (= .cse0 .cse1)) (= .cse0 (+ (select .cse2 .cse3) (select (select (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|))))))))) is different from false [2022-11-02 20:28:22,198 WARN L234 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 102 DAG size of output: 64 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-02 20:28:22,199 INFO L356 Elim1Store]: treesize reduction 530, result has 47.1 percent of original size [2022-11-02 20:28:22,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 16880 treesize of output 4465 [2022-11-02 20:28:24,869 INFO L356 Elim1Store]: treesize reduction 274, result has 6.8 percent of original size [2022-11-02 20:28:24,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 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 7167 treesize of output 7142 [2022-11-02 20:28:25,222 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11316 treesize of output 10973 [2022-11-02 20:28:25,471 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:28:25,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 7066 treesize of output 7060 [2022-11-02 20:28:25,742 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:28:25,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 12192 treesize of output 11250