./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/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_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- 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 20:52:54,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:52:54,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:52:54,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:52:54,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:52:54,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:52:54,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:52:54,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:52:54,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:52:54,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:52:54,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:52:54,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:52:54,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:52:54,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:52:54,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:52:54,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:52:54,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:52:54,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:52:54,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:52:54,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:52:54,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:52:54,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:52:54,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:52:54,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:52:54,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:52:54,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:52:54,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:52:54,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:52:54,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:52:54,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:52:54,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:52:54,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:52:54,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:52:54,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:52:54,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:52:54,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:52:54,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:52:54,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:52:54,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:52:54,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:52:54,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:52:54,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 20:52:54,965 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:52:54,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:52:54,966 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:52:54,966 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:52:54,967 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:52:54,967 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:52:54,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:52:54,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:52:54,968 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:52:54,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:52:54,969 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:52:54,969 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:52:54,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:52:54,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:52:54,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:52:54,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:52:54,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:52:54,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:52:54,971 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:52:54,971 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:52:54,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:52:54,972 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:52:54,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:52:54,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:52:54,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:52:54,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:52:54,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:52:54,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:52:54,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:52:54,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:52:54,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:52:54,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:52:54,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:52:54,975 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_4402ed1a-bec0-411c-b890-58e12c42cb1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2022-11-02 20:52:55,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:52:55,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:52:55,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:52:55,289 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:52:55,290 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:52:55,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2022-11-02 20:52:55,391 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/data/42c237e84/dd981d2c9b9948ee80be722e85e97655/FLAGeae0acded [2022-11-02 20:52:56,002 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:52:56,017 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2022-11-02 20:52:56,042 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/data/42c237e84/dd981d2c9b9948ee80be722e85e97655/FLAGeae0acded [2022-11-02 20:52:56,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/data/42c237e84/dd981d2c9b9948ee80be722e85e97655 [2022-11-02 20:52:56,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:52:56,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:52:56,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:52:56,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:52:56,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:52:56,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:56,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3208a72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56, skipping insertion in model container [2022-11-02 20:52:56,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:56,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:52:56,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:52:56,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:52:56,827 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:52:56,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:52:56,919 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:52:56,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56 WrapperNode [2022-11-02 20:52:56,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:52:56,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:52:56,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:52:56,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:52:56,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:56,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:56,980 INFO L138 Inliner]: procedures = 262, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2022-11-02 20:52:56,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:52:56,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:52:56,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:52:56,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:52:56,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:56,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:57,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:57,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:57,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:57,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:57,041 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:57,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:57,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:52:57,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:52:57,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:52:57,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:52:57,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56" (1/1) ... [2022-11-02 20:52:57,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:52:57,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:52:57,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:52:57,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:52:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:52:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:52:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:52:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:52:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:52:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:52:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:52:57,162 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:52:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:52:57,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:52:57,164 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:52:57,333 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:52:57,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:52:57,571 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:52:57,578 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:52:57,579 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 20:52:57,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:57 BoogieIcfgContainer [2022-11-02 20:52:57,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:52:57,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:52:57,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:52:57,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:52:57,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:52:56" (1/3) ... [2022-11-02 20:52:57,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aeaa1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:57, skipping insertion in model container [2022-11-02 20:52:57,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:56" (2/3) ... [2022-11-02 20:52:57,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aeaa1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:57, skipping insertion in model container [2022-11-02 20:52:57,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:57" (3/3) ... [2022-11-02 20:52:57,592 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2022-11-02 20:52:57,601 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:52:57,612 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:52:57,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-02 20:52:57,613 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:52:57,674 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:52:57,709 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:52:57,722 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 98 transitions, 201 flow [2022-11-02 20:52:57,725 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 98 transitions, 201 flow [2022-11-02 20:52:57,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 98 transitions, 201 flow [2022-11-02 20:52:57,776 INFO L130 PetriNetUnfolder]: 6/97 cut-off events. [2022-11-02 20:52:57,776 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:52:57,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 97 events. 6/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 145 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-11-02 20:52:57,784 INFO L118 LiptonReduction]: Number of co-enabled transitions 2304 [2022-11-02 20:53:00,576 INFO L133 LiptonReduction]: Checked pairs total: 3110 [2022-11-02 20:53:00,576 INFO L135 LiptonReduction]: Total number of compositions: 97 [2022-11-02 20:53:00,585 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 27 transitions, 59 flow [2022-11-02 20:53:00,604 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 104 states, 78 states have (on average 2.6153846153846154) internal successors, (204), 103 states have internal predecessors, (204), 0 states have call successors, (0), 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 20:53:00,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:53:00,634 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@22822536, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:53:00,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-02 20:53:00,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 78 states have (on average 2.6153846153846154) internal successors, (204), 103 states have internal predecessors, (204), 0 states have call successors, (0), 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 20:53:00,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-02 20:53:00,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:00,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-02 20:53:00,644 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:00,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:00,649 INFO L85 PathProgramCache]: Analyzing trace with hash 12308, now seen corresponding path program 1 times [2022-11-02 20:53:00,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:00,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969059581] [2022-11-02 20:53:00,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:00,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:00,911 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 20:53:00,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:00,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969059581] [2022-11-02 20:53:00,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969059581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:00,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:00,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:53:00,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969232738] [2022-11-02 20:53:00,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:00,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:53:00,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:00,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:53:00,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:53:00,955 INFO L87 Difference]: Start difference. First operand has 104 states, 78 states have (on average 2.6153846153846154) internal successors, (204), 103 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 20:53:01,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:01,022 INFO L93 Difference]: Finished difference Result 102 states and 202 transitions. [2022-11-02 20:53:01,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:53:01,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2022-11-02 20:53:01,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:01,035 INFO L225 Difference]: With dead ends: 102 [2022-11-02 20:53:01,035 INFO L226 Difference]: Without dead ends: 102 [2022-11-02 20:53:01,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:53:01,042 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:01,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:53:01,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-02 20:53:01,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-11-02 20:53:01,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 78 states have (on average 2.58974358974359) internal successors, (202), 101 states have internal predecessors, (202), 0 states have call successors, (0), 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 20:53:01,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 202 transitions. [2022-11-02 20:53:01,104 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 202 transitions. Word has length 2 [2022-11-02 20:53:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:01,105 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 202 transitions. [2022-11-02 20:53:01,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 20:53:01,105 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 202 transitions. [2022-11-02 20:53:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:53:01,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:01,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:53:01,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:53:01,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:01,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:01,107 INFO L85 PathProgramCache]: Analyzing trace with hash 367074484, now seen corresponding path program 1 times [2022-11-02 20:53:01,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:01,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986443948] [2022-11-02 20:53:01,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:01,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:01,174 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 20:53:01,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:01,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986443948] [2022-11-02 20:53:01,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986443948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:01,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:01,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:53:01,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473456102] [2022-11-02 20:53:01,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:01,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:53:01,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:01,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:53:01,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:53:01,178 INFO L87 Difference]: Start difference. First operand 102 states and 202 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 20:53:01,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:01,229 INFO L93 Difference]: Finished difference Result 103 states and 203 transitions. [2022-11-02 20:53:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:53:01,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-11-02 20:53:01,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:01,233 INFO L225 Difference]: With dead ends: 103 [2022-11-02 20:53:01,234 INFO L226 Difference]: Without dead ends: 103 [2022-11-02 20:53:01,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:53:01,237 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:01,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:53:01,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-02 20:53:01,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-02 20:53:01,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 79 states have (on average 2.569620253164557) internal successors, (203), 102 states have internal predecessors, (203), 0 states have call successors, (0), 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 20:53:01,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 203 transitions. [2022-11-02 20:53:01,249 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 203 transitions. Word has length 5 [2022-11-02 20:53:01,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:01,250 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 203 transitions. [2022-11-02 20:53:01,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 20:53:01,250 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 203 transitions. [2022-11-02 20:53:01,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:53:01,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:01,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:53:01,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:53:01,251 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:01,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:01,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1508533563, now seen corresponding path program 1 times [2022-11-02 20:53:01,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:01,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033898889] [2022-11-02 20:53:01,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:01,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:01,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:01,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033898889] [2022-11-02 20:53:01,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033898889] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:53:01,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225817041] [2022-11-02 20:53:01,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:01,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:53:01,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:53:01,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:53:01,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:53:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:01,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:53:01,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:53:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:01,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:53:01,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:01,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225817041] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:53:01,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:53:01,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-02 20:53:01,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435889577] [2022-11-02 20:53:01,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:53:01,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:53:01,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:01,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:53:01,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:53:01,575 INFO L87 Difference]: Start difference. First operand 103 states and 203 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:01,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:01,636 INFO L93 Difference]: Finished difference Result 106 states and 206 transitions. [2022-11-02 20:53:01,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:53:01,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 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 6 [2022-11-02 20:53:01,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:01,638 INFO L225 Difference]: With dead ends: 106 [2022-11-02 20:53:01,638 INFO L226 Difference]: Without dead ends: 106 [2022-11-02 20:53:01,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:53:01,639 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:01,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:53:01,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-02 20:53:01,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-11-02 20:53:01,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 82 states have (on average 2.5121951219512195) internal successors, (206), 105 states have internal predecessors, (206), 0 states have call successors, (0), 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 20:53:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 206 transitions. [2022-11-02 20:53:01,648 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 206 transitions. Word has length 6 [2022-11-02 20:53:01,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:01,648 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 206 transitions. [2022-11-02 20:53:01,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:01,665 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 206 transitions. [2022-11-02 20:53:01,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:53:01,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:01,666 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2022-11-02 20:53:01,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:53:01,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:53:01,867 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:01,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:01,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1105684236, now seen corresponding path program 2 times [2022-11-02 20:53:01,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:01,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347737242] [2022-11-02 20:53:01,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:01,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:02,071 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:02,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:02,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347737242] [2022-11-02 20:53:02,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347737242] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:53:02,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735096763] [2022-11-02 20:53:02,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:53:02,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:53:02,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:53:02,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:53:02,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:53:02,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:53:02,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:53:02,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-02 20:53:02,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:53:02,208 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 7 treesize of output 6 [2022-11-02 20:53:02,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:53:02,293 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 13 treesize of output 15 [2022-11-02 20:53:02,324 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-02 20:53:02,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:53:02,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735096763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:02,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:53:02,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2022-11-02 20:53:02,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526367426] [2022-11-02 20:53:02,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:02,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:53:02,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:02,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:53:02,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:53:02,330 INFO L87 Difference]: Start difference. First operand 106 states and 206 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 20:53:02,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:02,407 INFO L93 Difference]: Finished difference Result 140 states and 274 transitions. [2022-11-02 20:53:02,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:53:02,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 20:53:02,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:02,409 INFO L225 Difference]: With dead ends: 140 [2022-11-02 20:53:02,410 INFO L226 Difference]: Without dead ends: 140 [2022-11-02 20:53:02,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:53:02,411 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:02,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:53:02,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-02 20:53:02,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 125. [2022-11-02 20:53:02,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 101 states have (on average 2.4752475247524752) internal successors, (250), 124 states have internal predecessors, (250), 0 states have call successors, (0), 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 20:53:02,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 250 transitions. [2022-11-02 20:53:02,422 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 250 transitions. Word has length 9 [2022-11-02 20:53:02,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:02,422 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 250 transitions. [2022-11-02 20:53:02,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 20:53:02,423 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 250 transitions. [2022-11-02 20:53:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 20:53:02,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:02,424 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:02,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-02 20:53:02,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:53:02,649 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:02,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:02,650 INFO L85 PathProgramCache]: Analyzing trace with hash 83527399, now seen corresponding path program 1 times [2022-11-02 20:53:02,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:02,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064464079] [2022-11-02 20:53:02,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:02,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:02,781 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:02,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:02,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064464079] [2022-11-02 20:53:02,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064464079] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:53:02,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350405951] [2022-11-02 20:53:02,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:02,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:53:02,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:53:02,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:53:02,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:53:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:02,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:53:02,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:53:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:02,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:53:02,967 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:02,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350405951] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:53:02,967 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:53:02,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-02 20:53:02,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060662140] [2022-11-02 20:53:02,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:53:02,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:53:02,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:02,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:53:02,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:53:02,969 INFO L87 Difference]: Start difference. First operand 125 states and 250 transitions. Second operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:03,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:03,104 INFO L93 Difference]: Finished difference Result 131 states and 256 transitions. [2022-11-02 20:53:03,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:53:03,106 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-02 20:53:03,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:03,110 INFO L225 Difference]: With dead ends: 131 [2022-11-02 20:53:03,110 INFO L226 Difference]: Without dead ends: 131 [2022-11-02 20:53:03,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:53:03,118 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:03,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:53:03,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-02 20:53:03,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-11-02 20:53:03,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 107 states have (on average 2.392523364485981) internal successors, (256), 130 states have internal predecessors, (256), 0 states have call successors, (0), 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 20:53:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 256 transitions. [2022-11-02 20:53:03,131 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 256 transitions. Word has length 10 [2022-11-02 20:53:03,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:03,132 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 256 transitions. [2022-11-02 20:53:03,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:03,132 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 256 transitions. [2022-11-02 20:53:03,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-02 20:53:03,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:03,133 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:03,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:53:03,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:53:03,357 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:03,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:03,358 INFO L85 PathProgramCache]: Analyzing trace with hash 142562439, now seen corresponding path program 2 times [2022-11-02 20:53:03,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:03,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511339637] [2022-11-02 20:53:03,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:03,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:03,687 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:03,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:03,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511339637] [2022-11-02 20:53:03,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511339637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:03,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:03,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:53:03,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385048923] [2022-11-02 20:53:03,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:03,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:53:03,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:03,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:53:03,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:53:03,693 INFO L87 Difference]: Start difference. First operand 131 states and 256 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:03,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:03,799 INFO L93 Difference]: Finished difference Result 140 states and 268 transitions. [2022-11-02 20:53:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:53:03,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-02 20:53:03,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:03,802 INFO L225 Difference]: With dead ends: 140 [2022-11-02 20:53:03,802 INFO L226 Difference]: Without dead ends: 140 [2022-11-02 20:53:03,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:53:03,805 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:03,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:53:03,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-02 20:53:03,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 133. [2022-11-02 20:53:03,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 109 states have (on average 2.36697247706422) internal successors, (258), 132 states have internal predecessors, (258), 0 states have call successors, (0), 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 20:53:03,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 258 transitions. [2022-11-02 20:53:03,826 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 258 transitions. Word has length 16 [2022-11-02 20:53:03,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:03,827 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 258 transitions. [2022-11-02 20:53:03,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:03,827 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 258 transitions. [2022-11-02 20:53:03,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-02 20:53:03,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:03,828 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:03,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:53:03,828 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:03,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:03,829 INFO L85 PathProgramCache]: Analyzing trace with hash 142580362, now seen corresponding path program 1 times [2022-11-02 20:53:03,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:03,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343716056] [2022-11-02 20:53:03,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:03,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:04,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:04,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343716056] [2022-11-02 20:53:04,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343716056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:04,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:04,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:53:04,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125458413] [2022-11-02 20:53:04,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:04,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:53:04,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:04,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:53:04,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:53:04,075 INFO L87 Difference]: Start difference. First operand 133 states and 258 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:04,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:04,180 INFO L93 Difference]: Finished difference Result 135 states and 258 transitions. [2022-11-02 20:53:04,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:53:04,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-02 20:53:04,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:04,196 INFO L225 Difference]: With dead ends: 135 [2022-11-02 20:53:04,196 INFO L226 Difference]: Without dead ends: 135 [2022-11-02 20:53:04,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:53:04,198 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:04,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:53:04,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-02 20:53:04,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 132. [2022-11-02 20:53:04,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 108 states have (on average 2.3518518518518516) internal successors, (254), 131 states have internal predecessors, (254), 0 states have call successors, (0), 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 20:53:04,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 254 transitions. [2022-11-02 20:53:04,214 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 254 transitions. Word has length 16 [2022-11-02 20:53:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:04,215 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 254 transitions. [2022-11-02 20:53:04,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:04,222 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 254 transitions. [2022-11-02 20:53:04,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-02 20:53:04,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:04,223 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:04,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:53:04,224 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:04,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:04,225 INFO L85 PathProgramCache]: Analyzing trace with hash -436453062, now seen corresponding path program 1 times [2022-11-02 20:53:04,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:04,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580426714] [2022-11-02 20:53:04,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:04,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:04,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:04,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580426714] [2022-11-02 20:53:04,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580426714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:04,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:04,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:53:04,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893637503] [2022-11-02 20:53:04,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:04,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:53:04,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:04,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:53:04,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:53:04,303 INFO L87 Difference]: Start difference. First operand 132 states and 254 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 20:53:04,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:04,370 INFO L93 Difference]: Finished difference Result 184 states and 357 transitions. [2022-11-02 20:53:04,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:53:04,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-02 20:53:04,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:04,372 INFO L225 Difference]: With dead ends: 184 [2022-11-02 20:53:04,372 INFO L226 Difference]: Without dead ends: 184 [2022-11-02 20:53:04,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:53:04,373 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:04,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:53:04,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-02 20:53:04,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 166. [2022-11-02 20:53:04,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 142 states have (on average 2.387323943661972) internal successors, (339), 165 states have internal predecessors, (339), 0 states have call successors, (0), 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 20:53:04,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 339 transitions. [2022-11-02 20:53:04,388 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 339 transitions. Word has length 18 [2022-11-02 20:53:04,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:04,389 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 339 transitions. [2022-11-02 20:53:04,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 20:53:04,390 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 339 transitions. [2022-11-02 20:53:04,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-02 20:53:04,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:04,391 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:04,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:53:04,392 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:04,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:04,393 INFO L85 PathProgramCache]: Analyzing trace with hash -419216355, now seen corresponding path program 1 times [2022-11-02 20:53:04,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:04,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188262297] [2022-11-02 20:53:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:04,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:04,457 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:04,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:04,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188262297] [2022-11-02 20:53:04,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188262297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:04,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:04,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:53:04,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923025405] [2022-11-02 20:53:04,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:04,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:53:04,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:04,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:53:04,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:53:04,461 INFO L87 Difference]: Start difference. First operand 166 states and 339 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 20:53:04,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:04,520 INFO L93 Difference]: Finished difference Result 228 states and 464 transitions. [2022-11-02 20:53:04,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:53:04,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-02 20:53:04,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:04,522 INFO L225 Difference]: With dead ends: 228 [2022-11-02 20:53:04,522 INFO L226 Difference]: Without dead ends: 228 [2022-11-02 20:53:04,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:53:04,524 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:04,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:53:04,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-02 20:53:04,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 208. [2022-11-02 20:53:04,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 184 states have (on average 2.4130434782608696) internal successors, (444), 207 states have internal predecessors, (444), 0 states have call successors, (0), 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 20:53:04,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 444 transitions. [2022-11-02 20:53:04,535 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 444 transitions. Word has length 18 [2022-11-02 20:53:04,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:04,536 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 444 transitions. [2022-11-02 20:53:04,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 20:53:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 444 transitions. [2022-11-02 20:53:04,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-02 20:53:04,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:04,539 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:04,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:53:04,539 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:04,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:04,540 INFO L85 PathProgramCache]: Analyzing trace with hash -644348000, now seen corresponding path program 1 times [2022-11-02 20:53:04,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:04,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55682311] [2022-11-02 20:53:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:04,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:04,978 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:04,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:04,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55682311] [2022-11-02 20:53:04,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55682311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:04,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:04,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:53:04,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751105703] [2022-11-02 20:53:04,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:04,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:53:04,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:04,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:53:04,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:53:04,981 INFO L87 Difference]: Start difference. First operand 208 states and 444 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:05,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:05,101 INFO L93 Difference]: Finished difference Result 259 states and 544 transitions. [2022-11-02 20:53:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:53:05,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-02 20:53:05,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:05,103 INFO L225 Difference]: With dead ends: 259 [2022-11-02 20:53:05,103 INFO L226 Difference]: Without dead ends: 259 [2022-11-02 20:53:05,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:53:05,104 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:05,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:53:05,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-02 20:53:05,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 236. [2022-11-02 20:53:05,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 212 states have (on average 2.3679245283018866) internal successors, (502), 235 states have internal predecessors, (502), 0 states have call successors, (0), 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 20:53:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 502 transitions. [2022-11-02 20:53:05,114 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 502 transitions. Word has length 19 [2022-11-02 20:53:05,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:05,115 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 502 transitions. [2022-11-02 20:53:05,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:05,115 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 502 transitions. [2022-11-02 20:53:05,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:53:05,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:05,117 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:05,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:53:05,118 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:05,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:05,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1501277915, now seen corresponding path program 1 times [2022-11-02 20:53:05,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:05,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229842472] [2022-11-02 20:53:05,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:05,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:05,528 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:05,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:05,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229842472] [2022-11-02 20:53:05,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229842472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:05,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:05,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:53:05,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575171125] [2022-11-02 20:53:05,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:05,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:53:05,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:05,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:53:05,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:53:05,531 INFO L87 Difference]: Start difference. First operand 236 states and 502 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:05,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:05,765 INFO L93 Difference]: Finished difference Result 262 states and 544 transitions. [2022-11-02 20:53:05,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:53:05,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:05,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:05,767 INFO L225 Difference]: With dead ends: 262 [2022-11-02 20:53:05,767 INFO L226 Difference]: Without dead ends: 262 [2022-11-02 20:53:05,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:53:05,768 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:05,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:53:05,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-11-02 20:53:05,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 244. [2022-11-02 20:53:05,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 220 states have (on average 2.3545454545454545) internal successors, (518), 243 states have internal predecessors, (518), 0 states have call successors, (0), 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 20:53:05,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 518 transitions. [2022-11-02 20:53:05,776 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 518 transitions. Word has length 20 [2022-11-02 20:53:05,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:05,777 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 518 transitions. [2022-11-02 20:53:05,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:05,777 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 518 transitions. [2022-11-02 20:53:05,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:53:05,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:05,778 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:05,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:53:05,778 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:05,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:05,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1501260405, now seen corresponding path program 1 times [2022-11-02 20:53:05,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:05,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187719309] [2022-11-02 20:53:05,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:05,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:06,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:06,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187719309] [2022-11-02 20:53:06,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187719309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:06,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:06,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:53:06,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440422785] [2022-11-02 20:53:06,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:06,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:53:06,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:06,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:53:06,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:53:06,210 INFO L87 Difference]: Start difference. First operand 244 states and 518 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:06,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:06,525 INFO L93 Difference]: Finished difference Result 270 states and 560 transitions. [2022-11-02 20:53:06,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:53:06,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:06,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:06,527 INFO L225 Difference]: With dead ends: 270 [2022-11-02 20:53:06,527 INFO L226 Difference]: Without dead ends: 270 [2022-11-02 20:53:06,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:53:06,528 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:06,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:53:06,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-02 20:53:06,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 251. [2022-11-02 20:53:06,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 227 states have (on average 2.343612334801762) internal successors, (532), 250 states have internal predecessors, (532), 0 states have call successors, (0), 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 20:53:06,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 532 transitions. [2022-11-02 20:53:06,537 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 532 transitions. Word has length 20 [2022-11-02 20:53:06,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:06,538 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 532 transitions. [2022-11-02 20:53:06,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:06,538 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 532 transitions. [2022-11-02 20:53:06,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:53:06,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:06,539 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:06,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:53:06,539 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:06,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:06,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1500078375, now seen corresponding path program 2 times [2022-11-02 20:53:06,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:06,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855126430] [2022-11-02 20:53:06,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:06,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:06,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:06,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855126430] [2022-11-02 20:53:06,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855126430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:06,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:06,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:53:06,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404979719] [2022-11-02 20:53:06,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:06,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:53:06,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:06,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:53:06,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:53:06,948 INFO L87 Difference]: Start difference. First operand 251 states and 532 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:07,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:07,260 INFO L93 Difference]: Finished difference Result 277 states and 574 transitions. [2022-11-02 20:53:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:53:07,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:07,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:07,262 INFO L225 Difference]: With dead ends: 277 [2022-11-02 20:53:07,262 INFO L226 Difference]: Without dead ends: 277 [2022-11-02 20:53:07,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:53:07,263 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:07,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:53:07,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-11-02 20:53:07,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 250. [2022-11-02 20:53:07,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 226 states have (on average 2.3451327433628317) internal successors, (530), 249 states have internal predecessors, (530), 0 states have call successors, (0), 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 20:53:07,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 530 transitions. [2022-11-02 20:53:07,275 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 530 transitions. Word has length 20 [2022-11-02 20:53:07,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:07,276 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 530 transitions. [2022-11-02 20:53:07,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:07,276 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 530 transitions. [2022-11-02 20:53:07,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:53:07,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:07,279 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:07,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:53:07,280 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:07,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:07,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1500048615, now seen corresponding path program 3 times [2022-11-02 20:53:07,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:07,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635761089] [2022-11-02 20:53:07,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:07,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:07,652 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:07,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:07,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635761089] [2022-11-02 20:53:07,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635761089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:07,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:07,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:53:07,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236338465] [2022-11-02 20:53:07,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:07,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:53:07,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:07,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:53:07,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:53:07,655 INFO L87 Difference]: Start difference. First operand 250 states and 530 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:07,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:07,977 INFO L93 Difference]: Finished difference Result 266 states and 549 transitions. [2022-11-02 20:53:07,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:53:07,978 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:07,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:07,979 INFO L225 Difference]: With dead ends: 266 [2022-11-02 20:53:07,979 INFO L226 Difference]: Without dead ends: 266 [2022-11-02 20:53:07,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:53:07,980 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 48 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:07,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 0 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:53:07,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-11-02 20:53:07,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 246. [2022-11-02 20:53:07,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 222 states have (on average 2.3423423423423424) internal successors, (520), 245 states have internal predecessors, (520), 0 states have call successors, (0), 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 20:53:07,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 520 transitions. [2022-11-02 20:53:07,989 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 520 transitions. Word has length 20 [2022-11-02 20:53:07,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:07,989 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 520 transitions. [2022-11-02 20:53:07,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:07,989 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 520 transitions. [2022-11-02 20:53:07,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:53:07,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:07,990 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:07,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:53:07,990 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:07,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:07,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1475421404, now seen corresponding path program 1 times [2022-11-02 20:53:07,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:07,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555114020] [2022-11-02 20:53:07,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:07,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:08,320 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:08,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:08,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555114020] [2022-11-02 20:53:08,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555114020] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:53:08,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97500352] [2022-11-02 20:53:08,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:08,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:53:08,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:53:08,325 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:53:08,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:53:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:08,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-02 20:53:08,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:53:08,462 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 7 treesize of output 6 [2022-11-02 20:53:08,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:53:08,536 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 13 treesize of output 15 [2022-11-02 20:53:08,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-11-02 20:53:16,040 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:16,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:53:20,297 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_429 (Array Int Int)) (v_ArrVal_430 Int) (|v_ULTIMATE.start_main_~#t1~0#1.base_34| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_166| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_167| Int)) (or (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_34|)) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_166| (+ 28 |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_167|)) (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_34| v_ArrVal_429) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_167| v_ArrVal_430) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_166|) 2147483647))) is different from false [2022-11-02 20:53:20,445 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:20,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97500352] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:53:20,445 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:53:20,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2022-11-02 20:53:20,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917845116] [2022-11-02 20:53:20,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:53:20,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 20:53:20,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:20,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:53:20,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=208, Unknown=17, NotChecked=32, Total=342 [2022-11-02 20:53:20,447 INFO L87 Difference]: Start difference. First operand 246 states and 520 transitions. Second operand has 19 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:20,456 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_429 (Array Int Int)) (v_ArrVal_430 Int) (|v_ULTIMATE.start_main_~#t1~0#1.base_34| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_166| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_167| Int)) (or (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_34|)) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_166| (+ 28 |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_167|)) (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_34| v_ArrVal_429) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_167| v_ArrVal_430) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_166|) 2147483647))) (= |c_~#cache~0.base| 1) (<= 1 |c_#StackHeapBarrier|) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_~#cache~0.base|))) is different from false [2022-11-02 20:53:21,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:21,291 INFO L93 Difference]: Finished difference Result 264 states and 549 transitions. [2022-11-02 20:53:21,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:53:21,292 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-02 20:53:21,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:21,293 INFO L225 Difference]: With dead ends: 264 [2022-11-02 20:53:21,293 INFO L226 Difference]: Without dead ends: 264 [2022-11-02 20:53:21,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=94, Invalid=238, Unknown=18, NotChecked=70, Total=420 [2022-11-02 20:53:21,294 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 222 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:21,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 222 Unchecked, 0.1s Time] [2022-11-02 20:53:21,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-11-02 20:53:21,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 251. [2022-11-02 20:53:21,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 227 states have (on average 2.3480176211453743) internal successors, (533), 250 states have internal predecessors, (533), 0 states have call successors, (0), 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 20:53:21,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 533 transitions. [2022-11-02 20:53:21,303 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 533 transitions. Word has length 20 [2022-11-02 20:53:21,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:21,304 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 533 transitions. [2022-11-02 20:53:21,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:21,304 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 533 transitions. [2022-11-02 20:53:21,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:53:21,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:21,305 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:21,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:53:21,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-02 20:53:21,519 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:21,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:21,520 INFO L85 PathProgramCache]: Analyzing trace with hash 797825915, now seen corresponding path program 2 times [2022-11-02 20:53:21,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:21,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718410511] [2022-11-02 20:53:21,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:21,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:21,889 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:21,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:21,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718410511] [2022-11-02 20:53:21,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718410511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:21,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:21,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:53:21,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014119105] [2022-11-02 20:53:21,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:21,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:53:21,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:21,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:53:21,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:53:21,892 INFO L87 Difference]: Start difference. First operand 251 states and 533 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:22,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:22,200 INFO L93 Difference]: Finished difference Result 277 states and 575 transitions. [2022-11-02 20:53:22,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:53:22,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:22,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:22,203 INFO L225 Difference]: With dead ends: 277 [2022-11-02 20:53:22,203 INFO L226 Difference]: Without dead ends: 277 [2022-11-02 20:53:22,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:53:22,204 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 35 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:22,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 0 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:53:22,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-11-02 20:53:22,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 249. [2022-11-02 20:53:22,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 225 states have (on average 2.351111111111111) internal successors, (529), 248 states have internal predecessors, (529), 0 states have call successors, (0), 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 20:53:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 529 transitions. [2022-11-02 20:53:22,213 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 529 transitions. Word has length 20 [2022-11-02 20:53:22,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:22,213 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 529 transitions. [2022-11-02 20:53:22,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:22,213 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 529 transitions. [2022-11-02 20:53:22,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:53:22,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:22,216 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:22,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:53:22,217 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:22,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:22,217 INFO L85 PathProgramCache]: Analyzing trace with hash 797792435, now seen corresponding path program 3 times [2022-11-02 20:53:22,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:22,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158084695] [2022-11-02 20:53:22,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:22,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:22,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:22,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158084695] [2022-11-02 20:53:22,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158084695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:22,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:22,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:53:22,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998741455] [2022-11-02 20:53:22,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:22,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:53:22,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:22,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:53:22,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:53:22,646 INFO L87 Difference]: Start difference. First operand 249 states and 529 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:22,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:22,989 INFO L93 Difference]: Finished difference Result 265 states and 548 transitions. [2022-11-02 20:53:22,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:53:22,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:22,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:22,991 INFO L225 Difference]: With dead ends: 265 [2022-11-02 20:53:22,991 INFO L226 Difference]: Without dead ends: 265 [2022-11-02 20:53:22,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:53:22,992 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 45 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:22,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 0 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:53:22,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-11-02 20:53:22,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 245. [2022-11-02 20:53:22,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 221 states have (on average 2.3484162895927603) internal successors, (519), 244 states have internal predecessors, (519), 0 states have call successors, (0), 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 20:53:23,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 519 transitions. [2022-11-02 20:53:23,000 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 519 transitions. Word has length 20 [2022-11-02 20:53:23,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:23,000 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 519 transitions. [2022-11-02 20:53:23,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 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 20:53:23,000 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 519 transitions. [2022-11-02 20:53:23,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:53:23,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:23,001 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:23,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:53:23,002 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:23,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:23,002 INFO L85 PathProgramCache]: Analyzing trace with hash 860031155, now seen corresponding path program 1 times [2022-11-02 20:53:23,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:23,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855805716] [2022-11-02 20:53:23,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:23,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:23,353 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:23,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:23,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855805716] [2022-11-02 20:53:23,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855805716] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:53:23,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855384831] [2022-11-02 20:53:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:23,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:53:23,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:53:23,356 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:53:23,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:53:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:23,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-02 20:53:23,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:53:23,487 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 7 treesize of output 6 [2022-11-02 20:53:23,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:53:23,557 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 13 treesize of output 15 [2022-11-02 20:53:23,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-11-02 20:53:31,742 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:31,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:53:37,412 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_152| Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_153| Int) (v_ArrVal_562 Int) (|v_ULTIMATE.start_main_~#t1~0#1.base_35| Int) (v_ArrVal_561 (Array Int Int))) (or (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_152| (+ |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_153| 28)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_35|)) (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_35| v_ArrVal_561) |c_~#cache~0.base|) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_153| v_ArrVal_562) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_152|) 2147483647))) is different from false [2022-11-02 20:53:37,542 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:37,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855384831] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:53:37,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:53:37,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2022-11-02 20:53:37,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833222296] [2022-11-02 20:53:37,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:53:37,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 20:53:37,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:37,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:53:37,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=210, Unknown=17, NotChecked=32, Total=342 [2022-11-02 20:53:37,545 INFO L87 Difference]: Start difference. First operand 245 states and 519 transitions. Second operand has 19 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:37,551 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_152| Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_153| Int) (v_ArrVal_562 Int) (|v_ULTIMATE.start_main_~#t1~0#1.base_35| Int) (v_ArrVal_561 (Array Int Int))) (or (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_152| (+ |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_153| 28)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_35|)) (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_35| v_ArrVal_561) |c_~#cache~0.base|) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_153| v_ArrVal_562) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_152|) 2147483647))) (= |c_~#cache~0.base| 1) (<= 1 |c_#StackHeapBarrier|) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_~#cache~0.base|))) is different from false [2022-11-02 20:53:44,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:53:44,762 INFO L93 Difference]: Finished difference Result 277 states and 579 transitions. [2022-11-02 20:53:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:53:44,763 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-02 20:53:44,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:53:44,765 INFO L225 Difference]: With dead ends: 277 [2022-11-02 20:53:44,765 INFO L226 Difference]: Without dead ends: 277 [2022-11-02 20:53:44,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=107, Invalid=261, Unknown=20, NotChecked=74, Total=462 [2022-11-02 20:53:44,766 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 54 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 287 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:53:44,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 0 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 287 Unchecked, 0.1s Time] [2022-11-02 20:53:44,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-11-02 20:53:44,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 253. [2022-11-02 20:53:44,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 229 states have (on average 2.349344978165939) internal successors, (538), 252 states have internal predecessors, (538), 0 states have call successors, (0), 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 20:53:44,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 538 transitions. [2022-11-02 20:53:44,774 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 538 transitions. Word has length 20 [2022-11-02 20:53:44,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:53:44,774 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 538 transitions. [2022-11-02 20:53:44,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:44,775 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 538 transitions. [2022-11-02 20:53:44,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-02 20:53:44,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:53:44,776 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:44,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:53:45,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-02 20:53:45,001 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:53:45,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:45,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1506576013, now seen corresponding path program 1 times [2022-11-02 20:53:45,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:45,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733582242] [2022-11-02 20:53:45,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:45,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:45,361 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:45,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:45,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733582242] [2022-11-02 20:53:45,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733582242] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:53:45,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677945564] [2022-11-02 20:53:45,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:45,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:53:45,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:53:45,365 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:53:45,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:53:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:45,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-02 20:53:45,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:53:45,494 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 7 treesize of output 6 [2022-11-02 20:53:45,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:53:45,569 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 13 treesize of output 15 [2022-11-02 20:53:45,635 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-11-02 20:53:52,438 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:52,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:53:59,041 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_171| Int) (|v_ULTIMATE.start_main_~#t1~0#1.base_36| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_172| Int) (v_ArrVal_631 (Array Int Int)) (v_ArrVal_633 Int)) (or (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_36| v_ArrVal_631) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_172| v_ArrVal_633) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_171|) 2147483647) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_171| (+ 28 |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_172|)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_36|)))) is different from false [2022-11-02 20:53:59,195 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:53:59,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677945564] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:53:59,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:53:59,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2022-11-02 20:53:59,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155762639] [2022-11-02 20:53:59,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:53:59,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 20:53:59,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:59,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:53:59,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=206, Unknown=19, NotChecked=32, Total=342 [2022-11-02 20:53:59,199 INFO L87 Difference]: Start difference. First operand 253 states and 538 transitions. Second operand has 19 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:59,204 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_~#cache~0.base| 1) (<= 1 |c_#StackHeapBarrier|) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_~#cache~0.base|)) (forall ((|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_171| Int) (|v_ULTIMATE.start_main_~#t1~0#1.base_36| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_172| Int) (v_ArrVal_631 (Array Int Int)) (v_ArrVal_633 Int)) (or (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_36| v_ArrVal_631) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_172| v_ArrVal_633) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_171|) 2147483647) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_171| (+ 28 |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_172|)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_36|))))) is different from false [2022-11-02 20:54:00,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:00,555 INFO L93 Difference]: Finished difference Result 271 states and 563 transitions. [2022-11-02 20:54:00,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:54:00,556 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-02 20:54:00,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:00,558 INFO L225 Difference]: With dead ends: 271 [2022-11-02 20:54:00,558 INFO L226 Difference]: Without dead ends: 271 [2022-11-02 20:54:00,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=101, Invalid=267, Unknown=20, NotChecked=74, Total=462 [2022-11-02 20:54:00,559 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 230 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:00,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 230 Unchecked, 0.1s Time] [2022-11-02 20:54:00,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-11-02 20:54:00,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 254. [2022-11-02 20:54:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 230 states have (on average 2.347826086956522) internal successors, (540), 253 states have internal predecessors, (540), 0 states have call successors, (0), 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 20:54:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 540 transitions. [2022-11-02 20:54:00,567 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 540 transitions. Word has length 21 [2022-11-02 20:54:00,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:00,567 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 540 transitions. [2022-11-02 20:54:00,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:00,568 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 540 transitions. [2022-11-02 20:54:00,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-02 20:54:00,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:00,568 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:00,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:54:00,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:54:00,769 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:54:00,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:00,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1506599263, now seen corresponding path program 2 times [2022-11-02 20:54:00,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:00,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127698572] [2022-11-02 20:54:00,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:00,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:01,073 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:54:01,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:01,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127698572] [2022-11-02 20:54:01,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127698572] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:54:01,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724263814] [2022-11-02 20:54:01,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:54:01,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:54:01,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:54:01,075 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:54:01,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 20:54:01,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:54:01,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:54:01,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-02 20:54:01,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:54:01,208 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 7 treesize of output 6 [2022-11-02 20:54:01,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:54:01,284 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 13 treesize of output 15 [2022-11-02 20:54:01,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-11-02 20:54:13,869 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:54:13,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:54:20,712 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_701 (Array Int Int)) (|v_ULTIMATE.start_main_~#t1~0#1.base_37| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_175| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_176| Int) (v_ArrVal_702 Int)) (or (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_37| v_ArrVal_701) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_176| v_ArrVal_702) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_175|) 2147483647) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_37|)) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_175| (+ 28 |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_176|)))) is different from false [2022-11-02 20:54:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:54:20,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724263814] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:54:20,849 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:54:20,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2022-11-02 20:54:20,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216933145] [2022-11-02 20:54:20,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:54:20,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 20:54:20,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:20,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:54:20,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=207, Unknown=18, NotChecked=32, Total=342 [2022-11-02 20:54:20,851 INFO L87 Difference]: Start difference. First operand 254 states and 540 transitions. Second operand has 19 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:20,859 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_~#cache~0.base| 1) (<= 1 |c_#StackHeapBarrier|) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_~#cache~0.base|)) (forall ((v_ArrVal_701 (Array Int Int)) (|v_ULTIMATE.start_main_~#t1~0#1.base_37| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_175| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_176| Int) (v_ArrVal_702 Int)) (or (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_37| v_ArrVal_701) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_176| v_ArrVal_702) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_175|) 2147483647) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_37|)) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_175| (+ 28 |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_176|))))) is different from false [2022-11-02 20:54:22,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:22,296 INFO L93 Difference]: Finished difference Result 271 states and 564 transitions. [2022-11-02 20:54:22,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:54:22,297 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-02 20:54:22,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:22,298 INFO L225 Difference]: With dead ends: 271 [2022-11-02 20:54:22,298 INFO L226 Difference]: Without dead ends: 271 [2022-11-02 20:54:22,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=101, Invalid=268, Unknown=19, NotChecked=74, Total=462 [2022-11-02 20:54:22,299 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 64 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 298 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:22,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 125 Invalid, 0 Unknown, 298 Unchecked, 0.1s Time] [2022-11-02 20:54:22,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-11-02 20:54:22,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 249. [2022-11-02 20:54:22,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 225 states have (on average 2.3422222222222224) internal successors, (527), 248 states have internal predecessors, (527), 0 states have call successors, (0), 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 20:54:22,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 527 transitions. [2022-11-02 20:54:22,307 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 527 transitions. Word has length 21 [2022-11-02 20:54:22,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:22,308 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 527 transitions. [2022-11-02 20:54:22,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:22,308 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 527 transitions. [2022-11-02 20:54:22,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-02 20:54:22,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:22,308 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:22,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:54:22,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:54:22,525 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:54:22,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:22,525 INFO L85 PathProgramCache]: Analyzing trace with hash 891131319, now seen corresponding path program 1 times [2022-11-02 20:54:22,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:22,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733649233] [2022-11-02 20:54:22,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:22,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:54:22,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:22,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733649233] [2022-11-02 20:54:22,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733649233] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:54:22,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011476357] [2022-11-02 20:54:22,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:22,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:54:22,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:54:22,844 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:54:22,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-02 20:54:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:22,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-02 20:54:22,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:54:22,984 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 7 treesize of output 6 [2022-11-02 20:54:23,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:54:23,075 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 13 treesize of output 15 [2022-11-02 20:54:23,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-11-02 20:54:31,638 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:54:31,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:54:36,772 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#t1~0#1.base_38| Int) (v_ArrVal_772 Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_155| Int) (v_ArrVal_771 (Array Int Int)) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_156| Int)) (or (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_38| v_ArrVal_771) |c_~#cache~0.base|) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_156| v_ArrVal_772) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_155|) 2147483647) (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_155| (+ |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_156| 28)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_38|)))) is different from false [2022-11-02 20:54:36,889 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:54:36,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011476357] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:54:36,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:54:36,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2022-11-02 20:54:36,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087732614] [2022-11-02 20:54:36,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:54:36,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 20:54:36,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:36,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:54:36,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=209, Unknown=18, NotChecked=32, Total=342 [2022-11-02 20:54:36,891 INFO L87 Difference]: Start difference. First operand 249 states and 527 transitions. Second operand has 19 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:36,898 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_~#cache~0.base| 1) (<= 1 |c_#StackHeapBarrier|) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_~#cache~0.base|)) (forall ((|v_ULTIMATE.start_main_~#t1~0#1.base_38| Int) (v_ArrVal_772 Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_155| Int) (v_ArrVal_771 (Array Int Int)) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_156| Int)) (or (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_38| v_ArrVal_771) |c_~#cache~0.base|) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_156| v_ArrVal_772) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_155|) 2147483647) (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_155| (+ |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_156| 28)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_38|))))) is different from false [2022-11-02 20:54:37,539 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_~#cache~0.base|)) (.cse0 ((as const (Array Int Int)) 0))) (let ((.cse2 (@diff .cse1 .cse0))) (and (= .cse0 (store .cse1 .cse2 0)) (forall ((v_ArrVal_772 Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_155| Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_156| Int)) (or (< (select (store .cse1 |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_156| v_ArrVal_772) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_155|) 2147483647) (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_155| (+ |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_156| 28)))) (or (= .cse0 .cse1) (<= (+ 28 .cse2) (+ (* |c_ULTIMATE.start_main_~i~2#1| 28) |c_~#cache~0.offset|)))))) is different from false [2022-11-02 20:54:41,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:41,494 INFO L93 Difference]: Finished difference Result 269 states and 558 transitions. [2022-11-02 20:54:41,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:54:41,494 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-02 20:54:41,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:41,496 INFO L225 Difference]: With dead ends: 269 [2022-11-02 20:54:41,496 INFO L226 Difference]: Without dead ends: 269 [2022-11-02 20:54:41,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=118, Invalid=291, Unknown=23, NotChecked=120, Total=552 [2022-11-02 20:54:41,497 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 132 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:41,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 132 Unchecked, 0.1s Time] [2022-11-02 20:54:41,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-02 20:54:41,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 248. [2022-11-02 20:54:41,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 224 states have (on average 2.34375) internal successors, (525), 247 states have internal predecessors, (525), 0 states have call successors, (0), 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 20:54:41,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 525 transitions. [2022-11-02 20:54:41,504 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 525 transitions. Word has length 21 [2022-11-02 20:54:41,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:41,504 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 525 transitions. [2022-11-02 20:54:41,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 525 transitions. [2022-11-02 20:54:41,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:54:41,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:41,505 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:41,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:54:41,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-02 20:54:41,706 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:54:41,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:41,706 INFO L85 PathProgramCache]: Analyzing trace with hash 540785006, now seen corresponding path program 1 times [2022-11-02 20:54:41,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:41,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262535102] [2022-11-02 20:54:41,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:41,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,029 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:54:42,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:42,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262535102] [2022-11-02 20:54:42,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262535102] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:54:42,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582934929] [2022-11-02 20:54:42,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:42,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:54:42,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:54:42,031 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:54:42,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-02 20:54:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-02 20:54:42,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:54:42,170 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 7 treesize of output 6 [2022-11-02 20:54:42,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:54:42,246 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 13 treesize of output 15 [2022-11-02 20:54:42,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-11-02 20:54:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:54:52,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:54:56,943 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#t1~0#1.base_39| Int) (v_ArrVal_845 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_180| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_181| Int) (v_ArrVal_847 Int)) (or (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_180| (+ 28 |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_181|)) (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_39| v_ArrVal_845) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_181| v_ArrVal_847) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_180|) 2147483647) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_39|)))) is different from false [2022-11-02 20:54:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:54:57,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582934929] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:54:57,059 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:54:57,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2022-11-02 20:54:57,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920005436] [2022-11-02 20:54:57,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:54:57,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 20:54:57,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:57,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:54:57,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=208, Unknown=17, NotChecked=32, Total=342 [2022-11-02 20:54:57,061 INFO L87 Difference]: Start difference. First operand 248 states and 525 transitions. Second operand has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:57,066 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_~#cache~0.base| 1) (<= 1 |c_#StackHeapBarrier|) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_~#cache~0.base|)) (forall ((|v_ULTIMATE.start_main_~#t1~0#1.base_39| Int) (v_ArrVal_845 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_180| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_181| Int) (v_ArrVal_847 Int)) (or (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_180| (+ 28 |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_181|)) (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_39| v_ArrVal_845) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_181| v_ArrVal_847) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_180|) 2147483647) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_39|))))) is different from false [2022-11-02 20:54:57,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:57,884 INFO L93 Difference]: Finished difference Result 264 states and 549 transitions. [2022-11-02 20:54:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:54:57,885 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:54:57,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:57,886 INFO L225 Difference]: With dead ends: 264 [2022-11-02 20:54:57,886 INFO L226 Difference]: Without dead ends: 264 [2022-11-02 20:54:57,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=94, Invalid=238, Unknown=18, NotChecked=70, Total=420 [2022-11-02 20:54:57,887 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 50 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 145 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:57,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 0 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 145 Unchecked, 0.1s Time] [2022-11-02 20:54:57,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-11-02 20:54:57,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 247. [2022-11-02 20:54:57,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 223 states have (on average 2.3452914798206277) internal successors, (523), 246 states have internal predecessors, (523), 0 states have call successors, (0), 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 20:54:57,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 523 transitions. [2022-11-02 20:54:57,894 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 523 transitions. Word has length 22 [2022-11-02 20:54:57,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:57,895 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 523 transitions. [2022-11-02 20:54:57,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:57,895 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 523 transitions. [2022-11-02 20:54:57,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:54:57,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:57,895 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:57,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:54:58,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-02 20:54:58,109 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:54:58,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:58,109 INFO L85 PathProgramCache]: Analyzing trace with hash 540758095, now seen corresponding path program 1 times [2022-11-02 20:54:58,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:58,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22056697] [2022-11-02 20:54:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:58,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:58,167 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:54:58,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:58,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22056697] [2022-11-02 20:54:58,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22056697] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:54:58,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346529589] [2022-11-02 20:54:58,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:58,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:54:58,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:54:58,170 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:54:58,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-02 20:54:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:58,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:54:58,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:54:58,348 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:54:58,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:54:58,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346529589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:58,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:54:58,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-02 20:54:58,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798434174] [2022-11-02 20:54:58,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:58,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:54:58,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:58,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:54:58,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:54:58,354 INFO L87 Difference]: Start difference. First operand 247 states and 523 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:58,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:58,439 INFO L93 Difference]: Finished difference Result 251 states and 511 transitions. [2022-11-02 20:54:58,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:54:58,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:54:58,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:58,441 INFO L225 Difference]: With dead ends: 251 [2022-11-02 20:54:58,441 INFO L226 Difference]: Without dead ends: 251 [2022-11-02 20:54:58,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:54:58,442 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 26 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:58,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 0 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:54:58,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-11-02 20:54:58,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 233. [2022-11-02 20:54:58,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 214 states have (on average 2.303738317757009) internal successors, (493), 232 states have internal predecessors, (493), 0 states have call successors, (0), 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 20:54:58,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 493 transitions. [2022-11-02 20:54:58,448 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 493 transitions. Word has length 22 [2022-11-02 20:54:58,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:58,448 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 493 transitions. [2022-11-02 20:54:58,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:58,448 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 493 transitions. [2022-11-02 20:54:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:54:58,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:58,449 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:58,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:54:58,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-02 20:54:58,661 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:54:58,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:58,661 INFO L85 PathProgramCache]: Analyzing trace with hash 540758096, now seen corresponding path program 1 times [2022-11-02 20:54:58,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:58,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615788624] [2022-11-02 20:54:58,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:58,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-02 20:54:58,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:58,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615788624] [2022-11-02 20:54:58,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615788624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:58,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:58,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:58,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521162833] [2022-11-02 20:54:58,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:58,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:58,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:58,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:58,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:58,733 INFO L87 Difference]: Start difference. First operand 233 states and 493 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:58,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:54:58,787 INFO L93 Difference]: Finished difference Result 219 states and 463 transitions. [2022-11-02 20:54:58,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:58,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:54:58,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:54:58,789 INFO L225 Difference]: With dead ends: 219 [2022-11-02 20:54:58,789 INFO L226 Difference]: Without dead ends: 219 [2022-11-02 20:54:58,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:58,790 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:54:58,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:54:58,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-02 20:54:58,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 190. [2022-11-02 20:54:58,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 176 states have (on average 2.25) internal successors, (396), 189 states have internal predecessors, (396), 0 states have call successors, (0), 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 20:54:58,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 396 transitions. [2022-11-02 20:54:58,796 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 396 transitions. Word has length 22 [2022-11-02 20:54:58,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:54:58,797 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 396 transitions. [2022-11-02 20:54:58,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:58,797 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 396 transitions. [2022-11-02 20:54:58,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:54:58,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:54:58,798 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:58,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 20:54:58,798 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:54:58,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:58,799 INFO L85 PathProgramCache]: Analyzing trace with hash -2120572321, now seen corresponding path program 1 times [2022-11-02 20:54:58,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:58,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698187242] [2022-11-02 20:54:58,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:58,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:59,084 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:54:59,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:59,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698187242] [2022-11-02 20:54:59,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698187242] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:54:59,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555242777] [2022-11-02 20:54:59,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:59,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:54:59,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:54:59,101 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:54:59,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-02 20:54:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:59,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-02 20:54:59,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:54:59,250 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 7 treesize of output 6 [2022-11-02 20:54:59,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:54:59,323 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 13 treesize of output 15 [2022-11-02 20:54:59,389 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-11-02 20:55:07,643 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:55:07,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:55:12,316 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1031 Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_160| Int) (|v_ULTIMATE.start_main_~#t1~0#1.base_40| Int) (v_ArrVal_1030 (Array Int Int)) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_159| Int)) (or (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_40|)) (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_159| (+ |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_160| 28)) (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_40| v_ArrVal_1030) |c_~#cache~0.base|) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_160| v_ArrVal_1031) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_159|) 2147483647))) is different from false [2022-11-02 20:55:12,430 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:55:12,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555242777] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:55:12,430 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:55:12,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2022-11-02 20:55:12,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257427579] [2022-11-02 20:55:12,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:55:12,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 20:55:12,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:12,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:55:12,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=208, Unknown=17, NotChecked=32, Total=342 [2022-11-02 20:55:12,432 INFO L87 Difference]: Start difference. First operand 190 states and 396 transitions. Second operand has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:12,438 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_~#cache~0.base| 1) (<= 1 |c_#StackHeapBarrier|) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_~#cache~0.base|)) (forall ((v_ArrVal_1031 Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_160| Int) (|v_ULTIMATE.start_main_~#t1~0#1.base_40| Int) (v_ArrVal_1030 (Array Int Int)) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_159| Int)) (or (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_40|)) (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_159| (+ |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_160| 28)) (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_40| v_ArrVal_1030) |c_~#cache~0.base|) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_160| v_ArrVal_1031) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_159|) 2147483647)))) is different from false [2022-11-02 20:55:15,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:15,882 INFO L93 Difference]: Finished difference Result 209 states and 429 transitions. [2022-11-02 20:55:15,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:55:15,883 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:55:15,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:15,885 INFO L225 Difference]: With dead ends: 209 [2022-11-02 20:55:15,885 INFO L226 Difference]: Without dead ends: 209 [2022-11-02 20:55:15,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=104, Invalid=266, Unknown=18, NotChecked=74, Total=462 [2022-11-02 20:55:15,888 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 57 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 192 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:15,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 0 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 192 Unchecked, 0.1s Time] [2022-11-02 20:55:15,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-02 20:55:15,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 191. [2022-11-02 20:55:15,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 177 states have (on average 2.2542372881355934) internal successors, (399), 190 states have internal predecessors, (399), 0 states have call successors, (0), 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 20:55:15,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 399 transitions. [2022-11-02 20:55:15,907 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 399 transitions. Word has length 22 [2022-11-02 20:55:15,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:15,907 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 399 transitions. [2022-11-02 20:55:15,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:15,907 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 399 transitions. [2022-11-02 20:55:15,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:55:15,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:15,911 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:15,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:16,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-02 20:55:16,133 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:55:16,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:16,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1855278687, now seen corresponding path program 2 times [2022-11-02 20:55:16,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:16,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369479787] [2022-11-02 20:55:16,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:16,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:16,439 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:55:16,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:16,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369479787] [2022-11-02 20:55:16,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369479787] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:55:16,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364223970] [2022-11-02 20:55:16,440 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:55:16,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:16,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:16,441 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:16,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-02 20:55:16,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:55:16,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:55:16,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-02 20:55:16,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:16,608 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 7 treesize of output 6 [2022-11-02 20:55:16,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:55:16,684 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 13 treesize of output 15 [2022-11-02 20:55:16,771 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-11-02 20:55:21,174 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:55:21,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:55:26,571 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_163| Int) (v_ArrVal_1104 (Array Int Int)) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_162| Int) (v_ArrVal_1105 Int) (|v_ULTIMATE.start_main_~#t1~0#1.base_41| Int)) (or (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_162| (+ |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_163| 28)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_41|)) (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_41| v_ArrVal_1104) |c_~#cache~0.base|) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_163| v_ArrVal_1105) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_162|) 2147483647))) is different from false [2022-11-02 20:55:26,683 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:55:26,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364223970] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:55:26,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:55:26,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 6] total 19 [2022-11-02 20:55:26,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627001231] [2022-11-02 20:55:26,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:55:26,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-02 20:55:26,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:26,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-02 20:55:26,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=274, Unknown=13, NotChecked=36, Total=420 [2022-11-02 20:55:26,686 INFO L87 Difference]: Start difference. First operand 191 states and 399 transitions. Second operand has 21 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:26,700 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_~#cache~0.base| 1) (<= 1 |c_#StackHeapBarrier|) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_~#cache~0.base|)) (forall ((|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_163| Int) (v_ArrVal_1104 (Array Int Int)) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_162| Int) (v_ArrVal_1105 Int) (|v_ULTIMATE.start_main_~#t1~0#1.base_41| Int)) (or (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_162| (+ |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_163| 28)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_41|)) (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_41| v_ArrVal_1104) |c_~#cache~0.base|) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_163| v_ArrVal_1105) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_162|) 2147483647)))) is different from false [2022-11-02 20:55:31,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:31,758 INFO L93 Difference]: Finished difference Result 218 states and 452 transitions. [2022-11-02 20:55:31,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:55:31,758 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:55:31,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:31,760 INFO L225 Difference]: With dead ends: 218 [2022-11-02 20:55:31,760 INFO L226 Difference]: Without dead ends: 218 [2022-11-02 20:55:31,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=154, Invalid=438, Unknown=16, NotChecked=94, Total=702 [2022-11-02 20:55:31,761 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 56 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 240 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:31,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 0 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 175 Invalid, 0 Unknown, 240 Unchecked, 0.2s Time] [2022-11-02 20:55:31,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-02 20:55:31,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 189. [2022-11-02 20:55:31,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 175 states have (on average 2.2457142857142856) internal successors, (393), 188 states have internal predecessors, (393), 0 states have call successors, (0), 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 20:55:31,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 393 transitions. [2022-11-02 20:55:31,767 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 393 transitions. Word has length 22 [2022-11-02 20:55:31,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:31,767 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 393 transitions. [2022-11-02 20:55:31,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:31,768 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 393 transitions. [2022-11-02 20:55:31,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:55:31,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:31,768 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:31,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:31,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:31,995 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:55:31,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:31,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1855268457, now seen corresponding path program 3 times [2022-11-02 20:55:31,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:31,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774986863] [2022-11-02 20:55:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:31,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:32,277 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:55:32,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:32,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774986863] [2022-11-02 20:55:32,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774986863] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:55:32,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456369977] [2022-11-02 20:55:32,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:55:32,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:32,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:32,281 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:32,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-02 20:55:32,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-02 20:55:32,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:55:32,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-02 20:55:32,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:32,441 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 7 treesize of output 6 [2022-11-02 20:55:32,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:55:32,518 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 13 treesize of output 15 [2022-11-02 20:55:32,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-11-02 20:55:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:55:42,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:55:48,560 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_165| Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_166| Int) (v_ArrVal_1178 (Array Int Int)) (|v_ULTIMATE.start_main_~#t1~0#1.base_42| Int) (v_ArrVal_1180 Int)) (or (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_42| v_ArrVal_1178) |c_~#cache~0.base|) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_166| v_ArrVal_1180) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_165|) 2147483647) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_42|)) (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_165| (+ |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_166| 28)))) is different from false [2022-11-02 20:55:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:55:48,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456369977] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:55:48,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:55:48,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2022-11-02 20:55:48,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002164980] [2022-11-02 20:55:48,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:55:48,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 20:55:48,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:48,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:55:48,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=209, Unknown=18, NotChecked=32, Total=342 [2022-11-02 20:55:48,683 INFO L87 Difference]: Start difference. First operand 189 states and 393 transitions. Second operand has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:48,690 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_~#cache~0.base| 1) (<= 1 |c_#StackHeapBarrier|) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_~#cache~0.base|)) (forall ((|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_165| Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_166| Int) (v_ArrVal_1178 (Array Int Int)) (|v_ULTIMATE.start_main_~#t1~0#1.base_42| Int) (v_ArrVal_1180 Int)) (or (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_42| v_ArrVal_1178) |c_~#cache~0.base|) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_166| v_ArrVal_1180) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_165|) 2147483647) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_42|)) (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_165| (+ |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_166| 28))))) is different from false [2022-11-02 20:55:56,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:56,971 INFO L93 Difference]: Finished difference Result 197 states and 402 transitions. [2022-11-02 20:55:56,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:55:56,972 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:55:56,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:56,973 INFO L225 Difference]: With dead ends: 197 [2022-11-02 20:55:56,973 INFO L226 Difference]: Without dead ends: 197 [2022-11-02 20:55:56,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=117, Invalid=289, Unknown=22, NotChecked=78, Total=506 [2022-11-02 20:55:56,974 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 306 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:56,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 306 Unchecked, 0.1s Time] [2022-11-02 20:55:56,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-02 20:55:56,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 181. [2022-11-02 20:55:56,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 167 states have (on average 2.245508982035928) internal successors, (375), 180 states have internal predecessors, (375), 0 states have call successors, (0), 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 20:55:56,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 375 transitions. [2022-11-02 20:55:56,980 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 375 transitions. Word has length 22 [2022-11-02 20:55:56,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:56,980 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 375 transitions. [2022-11-02 20:55:56,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:56,980 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 375 transitions. [2022-11-02 20:55:56,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:55:56,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:56,981 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:57,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:57,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:57,209 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:55:57,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:57,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1856228358, now seen corresponding path program 1 times [2022-11-02 20:55:57,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:57,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381403992] [2022-11-02 20:55:57,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:57,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:57,256 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:55:57,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:57,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381403992] [2022-11-02 20:55:57,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381403992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:57,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:57,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:55:57,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977769863] [2022-11-02 20:55:57,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:57,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:55:57,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:57,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:55:57,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:57,259 INFO L87 Difference]: Start difference. First operand 181 states and 375 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:57,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:57,308 INFO L93 Difference]: Finished difference Result 172 states and 356 transitions. [2022-11-02 20:55:57,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:55:57,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:55:57,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:57,309 INFO L225 Difference]: With dead ends: 172 [2022-11-02 20:55:57,309 INFO L226 Difference]: Without dead ends: 172 [2022-11-02 20:55:57,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:57,310 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:57,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:55:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-02 20:55:57,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2022-11-02 20:55:57,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 161 states have (on average 2.2111801242236027) internal successors, (356), 171 states have internal predecessors, (356), 0 states have call successors, (0), 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 20:55:57,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 356 transitions. [2022-11-02 20:55:57,317 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 356 transitions. Word has length 22 [2022-11-02 20:55:57,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:57,317 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 356 transitions. [2022-11-02 20:55:57,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:57,317 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 356 transitions. [2022-11-02 20:55:57,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:55:57,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:57,318 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:57,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-02 20:55:57,318 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:55:57,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:57,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1856228359, now seen corresponding path program 1 times [2022-11-02 20:55:57,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:57,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033941335] [2022-11-02 20:55:57,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:57,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-02 20:55:57,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:57,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033941335] [2022-11-02 20:55:57,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033941335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:57,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:57,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:55:57,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698515579] [2022-11-02 20:55:57,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:57,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:55:57,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:57,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:55:57,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:57,372 INFO L87 Difference]: Start difference. First operand 172 states and 356 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:57,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:57,422 INFO L93 Difference]: Finished difference Result 163 states and 337 transitions. [2022-11-02 20:55:57,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:55:57,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 20:55:57,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:57,424 INFO L225 Difference]: With dead ends: 163 [2022-11-02 20:55:57,424 INFO L226 Difference]: Without dead ends: 163 [2022-11-02 20:55:57,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:55:57,429 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:57,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:55:57,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-02 20:55:57,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 138. [2022-11-02 20:55:57,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 130 states have (on average 2.1538461538461537) internal successors, (280), 137 states have internal predecessors, (280), 0 states have call successors, (0), 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 20:55:57,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 280 transitions. [2022-11-02 20:55:57,435 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 280 transitions. Word has length 22 [2022-11-02 20:55:57,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:57,435 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 280 transitions. [2022-11-02 20:55:57,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:57,436 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 280 transitions. [2022-11-02 20:55:57,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 20:55:57,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:57,436 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:57,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-02 20:55:57,437 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:55:57,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:57,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1077225623, now seen corresponding path program 1 times [2022-11-02 20:55:57,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:57,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730085982] [2022-11-02 20:55:57,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:57,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:57,997 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:55:57,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:57,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730085982] [2022-11-02 20:55:57,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730085982] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:55:57,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371378536] [2022-11-02 20:55:57,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:57,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:57,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:58,001 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:58,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-02 20:55:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:58,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-02 20:55:58,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:58,195 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 7 treesize of output 6 [2022-11-02 20:55:58,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:55:58,318 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 13 treesize of output 15 [2022-11-02 20:55:58,544 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-02 20:55:59,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2022-11-02 20:56:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:56:00,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:56:04,714 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1331 Int) (v_ArrVal_1334 Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167| Int)) (let ((.cse0 (* |c_ULTIMATE.start_main_~i~2#1| 28))) (or (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167| (+ .cse0 28 |c_~#cache~0.offset|)) (< 0 (+ (select (select (let ((.cse1 (store |c_#memory_int| |c_~#cache~0.base| (store (select |c_#memory_int| |c_~#cache~0.base|) (+ .cse0 |c_~#cache~0.offset|) v_ArrVal_1331)))) (store .cse1 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse1 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| v_ArrVal_1334))) |c_~#cache~0.base|) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167|) 2147483650))))) is different from false [2022-11-02 20:56:06,731 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1331 Int) (v_ArrVal_1334 Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167| Int)) (or (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167| (+ 28 |c_~#cache~0.offset|)) (< 0 (+ 2147483650 (select (select (let ((.cse0 (store |c_#memory_int| |c_~#cache~0.base| (store (select |c_#memory_int| |c_~#cache~0.base|) |c_~#cache~0.offset| v_ArrVal_1331)))) (store .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| v_ArrVal_1334))) |c_~#cache~0.base|) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167|))))) is different from false [2022-11-02 20:56:07,624 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1331 Int) (v_ArrVal_1334 Int) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167| Int)) (or (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167| (+ 28 |c_~#cache~0.offset|)) (< 0 (+ 2147483650 (select (store (store (select |c_#memory_int| |c_~#cache~0.base|) |c_~#cache~0.offset| v_ArrVal_1331) (+ (* |c_t_funThread1of1ForFork0_~i~0#1| 28) |c_~#cache~0.offset|) v_ArrVal_1334) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167|))))) is different from false [2022-11-02 20:56:14,130 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1334 Int) (|v_ULTIMATE.start_main_~#t1~0#1.base_43| Int) (v_ArrVal_1330 (Array Int Int)) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167| Int)) (or (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167| (+ 28 |c_~#cache~0.offset|)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_43|)) (< 0 (+ 2147483650 (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_43| v_ArrVal_1330) |c_~#cache~0.base|) |c_~#cache~0.offset| v_ArrVal_1334) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167|))))) is different from false [2022-11-02 20:56:14,267 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 1 not checked. [2022-11-02 20:56:14,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371378536] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:56:14,268 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:56:14,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 25 [2022-11-02 20:56:14,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244087334] [2022-11-02 20:56:14,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:56:14,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-02 20:56:14,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:14,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-02 20:56:14,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=375, Unknown=14, NotChecked=180, Total=702 [2022-11-02 20:56:14,270 INFO L87 Difference]: Start difference. First operand 138 states and 280 transitions. Second operand has 27 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 26 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:14,277 WARN L833 $PredicateComparison]: unable to prove that (and (< 0 |c_#StackHeapBarrier|) (= |c_~#cache~0.base| 1) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_~#cache~0.base|)) (= |c_~#cache~0.offset| 0) (forall ((v_ArrVal_1334 Int) (|v_ULTIMATE.start_main_~#t1~0#1.base_43| Int) (v_ArrVal_1330 (Array Int Int)) (|v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167| Int)) (or (< |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167| (+ 28 |c_~#cache~0.offset|)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_43|)) (< 0 (+ 2147483650 (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_43| v_ArrVal_1330) |c_~#cache~0.base|) |c_~#cache~0.offset| v_ArrVal_1334) |v_ULTIMATE.start_cache_entry_addref_~entry#1.offset_167|)))))) is different from false [2022-11-02 20:56:27,493 WARN L234 SmtUtils]: Spent 13.10s on a formula simplification. DAG size of input: 39 DAG size of output: 19 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:56:28,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:28,923 INFO L93 Difference]: Finished difference Result 222 states and 474 transitions. [2022-11-02 20:56:28,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 20:56:28,924 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 26 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 20:56:28,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:28,925 INFO L225 Difference]: With dead ends: 222 [2022-11-02 20:56:28,925 INFO L226 Difference]: Without dead ends: 222 [2022-11-02 20:56:28,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 30.1s TimeCoverageRelationStatistics Valid=234, Invalid=641, Unknown=15, NotChecked=300, Total=1190 [2022-11-02 20:56:28,926 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 92 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 447 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:28,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 0 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 152 Invalid, 0 Unknown, 447 Unchecked, 0.2s Time] [2022-11-02 20:56:28,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-02 20:56:28,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 150. [2022-11-02 20:56:28,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 142 states have (on average 2.204225352112676) internal successors, (313), 149 states have internal predecessors, (313), 0 states have call successors, (0), 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 20:56:28,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 313 transitions. [2022-11-02 20:56:28,932 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 313 transitions. Word has length 23 [2022-11-02 20:56:28,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:28,932 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 313 transitions. [2022-11-02 20:56:28,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 26 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:56:28,932 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 313 transitions. [2022-11-02 20:56:28,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 20:56:28,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:28,933 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:28,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:29,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:29,161 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-11-02 20:56:29,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:29,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1075805579, now seen corresponding path program 1 times [2022-11-02 20:56:29,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:29,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942735209] [2022-11-02 20:56:29,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:29,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:56:29,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:29,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942735209] [2022-11-02 20:56:29,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942735209] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:56:29,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478319241] [2022-11-02 20:56:29,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:29,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:29,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:29,733 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:56:29,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4402ed1a-bec0-411c-b890-58e12c42cb1a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-02 20:56:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:29,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-02 20:56:29,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:29,913 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 7 treesize of output 6 [2022-11-02 20:56:30,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:56:30,053 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 13 treesize of output 15 [2022-11-02 20:56:30,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-11-02 20:56:30,902 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2022-11-02 20:56:32,563 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:56:32,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:56:39,116 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_191| Int) (v_ArrVal_1412 Int) (v_ArrVal_1414 Int)) (or (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_191| (+ (* |c_t_funThread1of1ForFork0_~i~0#1| 28) 28 |c_~#cache~0.offset|)) (< 0 (+ (select (select (let ((.cse0 (store |c_#memory_int| |c_~#cache~0.base| (store (select |c_#memory_int| |c_~#cache~0.base|) (+ (* |c_ULTIMATE.start_main_~i~2#1| 28) |c_~#cache~0.offset|) v_ArrVal_1412)))) (store .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| v_ArrVal_1414))) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_191|) 2147483650)))) is different from false [2022-11-02 20:56:41,177 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_191| Int) (v_ArrVal_1412 Int) (v_ArrVal_1414 Int)) (or (< 0 (+ 2147483650 (select (select (let ((.cse0 (store |c_#memory_int| |c_~#cache~0.base| (store (select |c_#memory_int| |c_~#cache~0.base|) |c_~#cache~0.offset| v_ArrVal_1412)))) (store .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| v_ArrVal_1414))) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_191|))) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_191| (+ (* |c_t_funThread1of1ForFork0_~i~0#1| 28) 28 |c_~#cache~0.offset|)))) is different from false [2022-11-02 20:57:09,416 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_191| Int) (v_ArrVal_1410 (Array Int Int)) (|v_ULTIMATE.start_main_~#t1~0#1.base_44| Int) (v_ArrVal_1414 Int)) (or (< 0 (+ (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_44| v_ArrVal_1410) |c_~#cache~0.base|) |c_~#cache~0.offset| v_ArrVal_1414) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_191|) 2147483650)) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_191| (+ 28 |c_~#cache~0.offset|)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_44|)))) is different from false [2022-11-02 20:57:09,574 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-02 20:57:09,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478319241] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:57:09,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:57:09,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 27 [2022-11-02 20:57:09,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746175575] [2022-11-02 20:57:09,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:57:09,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-02 20:57:09,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:09,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-02 20:57:09,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=439, Unknown=32, NotChecked=150, Total=812 [2022-11-02 20:57:09,576 INFO L87 Difference]: Start difference. First operand 150 states and 313 transitions. Second operand has 29 states, 28 states have (on average 1.5) internal successors, (42), 28 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:57:09,584 WARN L833 $PredicateComparison]: unable to prove that (and (< 0 |c_#StackHeapBarrier|) (= |c_~#cache~0.base| 1) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_~#cache~0.base|)) (forall ((|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_191| Int) (v_ArrVal_1410 (Array Int Int)) (|v_ULTIMATE.start_main_~#t1~0#1.base_44| Int) (v_ArrVal_1414 Int)) (or (< 0 (+ (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_44| v_ArrVal_1410) |c_~#cache~0.base|) |c_~#cache~0.offset| v_ArrVal_1414) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_191|) 2147483650)) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_191| (+ 28 |c_~#cache~0.offset|)) (not (< |c_#StackHeapBarrier| |v_ULTIMATE.start_main_~#t1~0#1.base_44|)))) (= |c_~#cache~0.offset| 0)) is different from false