./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/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_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/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_862171c9-2417-4989-92df-ce32c4e10075/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 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b --- 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 19:57:30,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 19:57:30,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 19:57:30,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 19:57:30,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 19:57:30,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 19:57:30,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 19:57:30,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 19:57:30,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 19:57:30,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 19:57:30,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 19:57:30,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 19:57:30,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 19:57:30,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 19:57:30,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 19:57:30,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 19:57:30,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 19:57:30,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 19:57:30,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 19:57:30,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 19:57:30,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 19:57:30,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 19:57:30,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 19:57:30,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 19:57:30,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 19:57:30,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 19:57:30,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 19:57:30,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 19:57:30,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 19:57:30,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 19:57:30,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 19:57:30,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 19:57:30,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 19:57:30,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 19:57:30,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 19:57:30,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 19:57:30,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 19:57:30,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 19:57:30,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 19:57:30,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 19:57:30,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 19:57:30,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 19:57:30,906 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 19:57:30,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 19:57:30,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 19:57:30,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 19:57:30,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 19:57:30,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 19:57:30,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 19:57:30,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 19:57:30,909 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 19:57:30,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 19:57:30,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 19:57:30,910 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 19:57:30,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 19:57:30,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 19:57:30,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 19:57:30,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 19:57:30,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 19:57:30,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 19:57:30,911 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 19:57:30,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 19:57:30,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 19:57:30,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 19:57:30,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 19:57:30,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 19:57:30,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 19:57:30,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 19:57:30,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:57:30,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 19:57:30,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 19:57:30,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 19:57:30,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 19:57:30,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 19:57:30,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 19:57:30,914 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_862171c9-2417-4989-92df-ce32c4e10075/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b [2022-11-02 19:57:31,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 19:57:31,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 19:57:31,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 19:57:31,254 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 19:57:31,255 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 19:57:31,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2022-11-02 19:57:31,336 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/data/46f18b0cd/f4285a561cd14456ac539946500d1427/FLAGa857a2e20 [2022-11-02 19:57:31,869 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 19:57:31,873 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2022-11-02 19:57:31,884 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/data/46f18b0cd/f4285a561cd14456ac539946500d1427/FLAGa857a2e20 [2022-11-02 19:57:32,218 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/data/46f18b0cd/f4285a561cd14456ac539946500d1427 [2022-11-02 19:57:32,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 19:57:32,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 19:57:32,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 19:57:32,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 19:57:32,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 19:57:32,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4517c7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32, skipping insertion in model container [2022-11-02 19:57:32,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 19:57:32,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 19:57:32,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c[3034,3047] [2022-11-02 19:57:32,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:57:32,503 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 19:57:32,531 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c[3034,3047] [2022-11-02 19:57:32,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:57:32,550 INFO L208 MainTranslator]: Completed translation [2022-11-02 19:57:32,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32 WrapperNode [2022-11-02 19:57:32,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 19:57:32,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 19:57:32,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 19:57:32,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 19:57:32,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,618 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 16, calls inlined = 24, statements flattened = 337 [2022-11-02 19:57:32,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 19:57:32,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 19:57:32,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 19:57:32,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 19:57:32,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,649 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 19:57:32,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 19:57:32,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 19:57:32,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 19:57:32,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32" (1/1) ... [2022-11-02 19:57:32,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:57:32,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:57:32,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 19:57:32,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 19:57:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 19:57:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 19:57:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 19:57:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 19:57:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 19:57:32,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 19:57:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 19:57:32,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 19:57:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 19:57:32,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 19:57:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 19:57:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 19:57:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 19:57:32,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 19:57:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 19:57:32,747 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 19:57:32,860 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 19:57:32,862 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 19:57:33,570 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 19:57:33,582 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 19:57:33,582 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-02 19:57:33,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:57:33 BoogieIcfgContainer [2022-11-02 19:57:33,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 19:57:33,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 19:57:33,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 19:57:33,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 19:57:33,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 07:57:32" (1/3) ... [2022-11-02 19:57:33,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63807e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:57:33, skipping insertion in model container [2022-11-02 19:57:33,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:57:32" (2/3) ... [2022-11-02 19:57:33,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63807e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:57:33, skipping insertion in model container [2022-11-02 19:57:33,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:57:33" (3/3) ... [2022-11-02 19:57:33,593 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2022-11-02 19:57:33,601 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 19:57:33,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 19:57:33,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-02 19:57:33,611 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 19:57:33,755 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 19:57:33,793 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 19:57:33,806 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 433 places, 460 transitions, 944 flow [2022-11-02 19:57:33,809 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 433 places, 460 transitions, 944 flow [2022-11-02 19:57:33,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 433 places, 460 transitions, 944 flow [2022-11-02 19:57:34,082 INFO L130 PetriNetUnfolder]: 37/457 cut-off events. [2022-11-02 19:57:34,084 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 19:57:34,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 457 events. 37/457 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1014 event pairs, 0 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 346. Up to 2 conditions per place. [2022-11-02 19:57:34,121 INFO L118 LiptonReduction]: Number of co-enabled transitions 48384 [2022-11-02 19:58:04,021 INFO L133 LiptonReduction]: Checked pairs total: 51701 [2022-11-02 19:58:04,021 INFO L135 LiptonReduction]: Total number of compositions: 609 [2022-11-02 19:58:04,040 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 63 transitions, 150 flow [2022-11-02 19:58:04,231 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3771 states, 3037 states have (on average 4.225551531116233) internal successors, (12833), 3770 states have internal predecessors, (12833), 0 states have call successors, (0), 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 19:58:04,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 19:58:04,257 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;@234dae94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 19:58:04,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2022-11-02 19:58:04,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 3771 states, 3037 states have (on average 4.225551531116233) internal successors, (12833), 3770 states have internal predecessors, (12833), 0 states have call successors, (0), 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 19:58:04,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-02 19:58:04,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:58:04,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-02 19:58:04,276 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-02 19:58:04,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:58:04,282 INFO L85 PathProgramCache]: Analyzing trace with hash 63029, now seen corresponding path program 1 times [2022-11-02 19:58:04,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:58:04,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215069911] [2022-11-02 19:58:04,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:04,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:04,616 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 19:58:04,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:58:04,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215069911] [2022-11-02 19:58:04,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215069911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:58:04,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:58:04,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 19:58:04,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525496423] [2022-11-02 19:58:04,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:58:04,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:58:04,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:58:04,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:58:04,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:58:04,668 INFO L87 Difference]: Start difference. First operand has 3771 states, 3037 states have (on average 4.225551531116233) internal successors, (12833), 3770 states have internal predecessors, (12833), 0 states have call successors, (0), 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 19:58:05,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:58:05,073 INFO L93 Difference]: Finished difference Result 3995 states and 13491 transitions. [2022-11-02 19:58:05,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:58:05,077 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 19:58:05,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:58:05,124 INFO L225 Difference]: With dead ends: 3995 [2022-11-02 19:58:05,125 INFO L226 Difference]: Without dead ends: 3995 [2022-11-02 19:58:05,125 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 19:58:05,128 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 39 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 19:58:05,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 0 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 19:58:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2022-11-02 19:58:05,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 2004. [2022-11-02 19:58:05,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1705 states have (on average 3.961876832844575) internal successors, (6755), 2003 states have internal predecessors, (6755), 0 states have call successors, (0), 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 19:58:05,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 6755 transitions. [2022-11-02 19:58:05,340 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 6755 transitions. Word has length 2 [2022-11-02 19:58:05,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:58:05,341 INFO L495 AbstractCegarLoop]: Abstraction has 2004 states and 6755 transitions. [2022-11-02 19:58:05,341 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 19:58:05,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 6755 transitions. [2022-11-02 19:58:05,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-02 19:58:05,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:58:05,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-02 19:58:05,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 19:58:05,343 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-02 19:58:05,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:58:05,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1955703, now seen corresponding path program 1 times [2022-11-02 19:58:05,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:58:05,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119064861] [2022-11-02 19:58:05,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:05,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:05,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:58:05,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:58:05,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119064861] [2022-11-02 19:58:05,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119064861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:58:05,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:58:05,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:58:05,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234614263] [2022-11-02 19:58:05,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:58:05,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:58:05,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:58:05,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:58:05,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:58:05,435 INFO L87 Difference]: Start difference. First operand 2004 states and 6755 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 19:58:05,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:58:05,575 INFO L93 Difference]: Finished difference Result 2001 states and 6752 transitions. [2022-11-02 19:58:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:58:05,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-11-02 19:58:05,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:58:05,597 INFO L225 Difference]: With dead ends: 2001 [2022-11-02 19:58:05,597 INFO L226 Difference]: Without dead ends: 2001 [2022-11-02 19:58:05,598 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 19:58:05,600 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 19:58:05,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 19:58:05,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2022-11-02 19:58:05,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 2001. [2022-11-02 19:58:05,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 1705 states have (on average 3.960117302052786) internal successors, (6752), 2000 states have internal predecessors, (6752), 0 states have call successors, (0), 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 19:58:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 6752 transitions. [2022-11-02 19:58:05,739 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 6752 transitions. Word has length 3 [2022-11-02 19:58:05,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:58:05,740 INFO L495 AbstractCegarLoop]: Abstraction has 2001 states and 6752 transitions. [2022-11-02 19:58:05,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 19:58:05,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 6752 transitions. [2022-11-02 19:58:05,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-02 19:58:05,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:58:05,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-02 19:58:05,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 19:58:05,742 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-02 19:58:05,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:58:05,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1955704, now seen corresponding path program 1 times [2022-11-02 19:58:05,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:58:05,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070727448] [2022-11-02 19:58:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:05,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:05,824 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 19:58:05,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:58:05,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070727448] [2022-11-02 19:58:05,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070727448] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 19:58:05,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314060190] [2022-11-02 19:58:05,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:05,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:05,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:58:05,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:58:05,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 19:58:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:05,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 19:58:05,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:58:05,982 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 19:58:05,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 19:58:06,000 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 19:58:06,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314060190] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 19:58:06,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 19:58:06,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-02 19:58:06,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239232154] [2022-11-02 19:58:06,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 19:58:06,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 19:58:06,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:58:06,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 19:58:06,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-02 19:58:06,003 INFO L87 Difference]: Start difference. First operand 2001 states and 6752 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:58:06,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:58:06,715 INFO L93 Difference]: Finished difference Result 9974 states and 33714 transitions. [2022-11-02 19:58:06,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 19:58:06,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-02 19:58:06,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:58:06,819 INFO L225 Difference]: With dead ends: 9974 [2022-11-02 19:58:06,819 INFO L226 Difference]: Without dead ends: 9974 [2022-11-02 19:58:06,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 19:58:06,824 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 234 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 19:58:06,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 0 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 19:58:06,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9974 states. [2022-11-02 19:58:07,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9974 to 2010. [2022-11-02 19:58:07,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1714 states have (on average 3.9498249708284714) internal successors, (6770), 2009 states have internal predecessors, (6770), 0 states have call successors, (0), 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 19:58:07,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 6770 transitions. [2022-11-02 19:58:07,052 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 6770 transitions. Word has length 3 [2022-11-02 19:58:07,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:58:07,053 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 6770 transitions. [2022-11-02 19:58:07,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:58:07,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 6770 transitions. [2022-11-02 19:58:07,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 19:58:07,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:58:07,054 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1] [2022-11-02 19:58:07,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 19:58:07,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:07,278 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-02 19:58:07,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:58:07,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1865402698, now seen corresponding path program 2 times [2022-11-02 19:58:07,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:58:07,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357825450] [2022-11-02 19:58:07,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:07,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:07,510 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 19:58:07,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:58:07,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357825450] [2022-11-02 19:58:07,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357825450] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 19:58:07,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746030104] [2022-11-02 19:58:07,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 19:58:07,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:07,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:58:07,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:58:07,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 19:58:07,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 19:58:07,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 19:58:07,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 19:58:07,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:58:07,682 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 19:58:07,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 19:58:07,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746030104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:58:07,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 19:58:07,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2022-11-02 19:58:07,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49037826] [2022-11-02 19:58:07,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:58:07,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:58:07,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:58:07,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:58:07,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-02 19:58:07,686 INFO L87 Difference]: Start difference. First operand 2010 states and 6770 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 19:58:07,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:58:07,817 INFO L93 Difference]: Finished difference Result 2007 states and 6767 transitions. [2022-11-02 19:58:07,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:58:07,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 19:58:07,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:58:07,830 INFO L225 Difference]: With dead ends: 2007 [2022-11-02 19:58:07,830 INFO L226 Difference]: Without dead ends: 2007 [2022-11-02 19:58:07,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-02 19:58:07,837 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 19:58:07,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 0 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 19:58:07,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2022-11-02 19:58:07,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 1995. [2022-11-02 19:58:07,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1702 states have (on average 3.961809635722679) internal successors, (6743), 1994 states have internal predecessors, (6743), 0 states have call successors, (0), 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 19:58:07,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 6743 transitions. [2022-11-02 19:58:07,973 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 6743 transitions. Word has length 6 [2022-11-02 19:58:07,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:58:07,975 INFO L495 AbstractCegarLoop]: Abstraction has 1995 states and 6743 transitions. [2022-11-02 19:58:07,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 19:58:07,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 6743 transitions. [2022-11-02 19:58:07,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 19:58:07,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:58:07,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:58:08,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 19:58:08,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:08,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-02 19:58:08,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:58:08,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1122932261, now seen corresponding path program 1 times [2022-11-02 19:58:08,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:58:08,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425096832] [2022-11-02 19:58:08,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:08,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:08,338 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 19:58:08,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:58:08,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425096832] [2022-11-02 19:58:08,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425096832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:58:08,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:58:08,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 19:58:08,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869291805] [2022-11-02 19:58:08,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:58:08,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:58:08,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:58:08,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:58:08,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:58:08,343 INFO L87 Difference]: Start difference. First operand 1995 states and 6743 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:58:08,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:58:08,494 INFO L93 Difference]: Finished difference Result 1998 states and 6746 transitions. [2022-11-02 19:58:08,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:58:08,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-02 19:58:08,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:58:08,506 INFO L225 Difference]: With dead ends: 1998 [2022-11-02 19:58:08,507 INFO L226 Difference]: Without dead ends: 1998 [2022-11-02 19:58:08,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 19:58:08,508 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 19:58:08,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 19:58:08,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2022-11-02 19:58:08,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1998. [2022-11-02 19:58:08,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1998 states, 1705 states have (on average 3.956598240469208) internal successors, (6746), 1997 states have internal predecessors, (6746), 0 states have call successors, (0), 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 19:58:08,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 6746 transitions. [2022-11-02 19:58:08,578 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 6746 transitions. Word has length 8 [2022-11-02 19:58:08,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:58:08,579 INFO L495 AbstractCegarLoop]: Abstraction has 1998 states and 6746 transitions. [2022-11-02 19:58:08,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:58:08,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 6746 transitions. [2022-11-02 19:58:08,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 19:58:08,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:58:08,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:58:08,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 19:58:08,582 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-02 19:58:08,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:58:08,583 INFO L85 PathProgramCache]: Analyzing trace with hash 627197115, now seen corresponding path program 1 times [2022-11-02 19:58:08,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:58:08,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754559842] [2022-11-02 19:58:08,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:08,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:08,766 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 19:58:08,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:58:08,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754559842] [2022-11-02 19:58:08,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754559842] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 19:58:08,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112090260] [2022-11-02 19:58:08,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:08,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:08,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:58:08,769 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:58:08,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 19:58:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:08,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 19:58:08,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:58:08,971 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 19:58:08,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 19:58:08,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 19:58:08,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112090260] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 19:58:08,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 19:58:08,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2022-11-02 19:58:08,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098054020] [2022-11-02 19:58:08,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 19:58:08,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 19:58:08,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:58:08,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 19:58:08,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-11-02 19:58:08,999 INFO L87 Difference]: Start difference. First operand 1998 states and 6746 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 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 19:58:09,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:58:09,221 INFO L93 Difference]: Finished difference Result 2007 states and 6755 transitions. [2022-11-02 19:58:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 19:58:09,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-02 19:58:09,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:58:09,234 INFO L225 Difference]: With dead ends: 2007 [2022-11-02 19:58:09,234 INFO L226 Difference]: Without dead ends: 2007 [2022-11-02 19:58:09,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-11-02 19:58:09,236 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 19:58:09,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 19:58:09,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2022-11-02 19:58:09,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 2007. [2022-11-02 19:58:09,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1714 states have (on average 3.941073512252042) internal successors, (6755), 2006 states have internal predecessors, (6755), 0 states have call successors, (0), 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 19:58:09,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 6755 transitions. [2022-11-02 19:58:09,339 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 6755 transitions. Word has length 11 [2022-11-02 19:58:09,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:58:09,339 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 6755 transitions. [2022-11-02 19:58:09,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 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 19:58:09,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 6755 transitions. [2022-11-02 19:58:09,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 19:58:09,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:58:09,341 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:58:09,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 19:58:09,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:09,550 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-02 19:58:09,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:58:09,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2118666789, now seen corresponding path program 2 times [2022-11-02 19:58:09,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:58:09,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793031461] [2022-11-02 19:58:09,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:09,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:09,762 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-02 19:58:09,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:58:09,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793031461] [2022-11-02 19:58:09,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793031461] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 19:58:09,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836897015] [2022-11-02 19:58:09,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 19:58:09,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:09,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:58:09,768 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:58:09,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 19:58:09,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 19:58:09,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 19:58:09,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 19:58:09,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:58:10,090 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-02 19:58:10,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 19:58:10,135 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-02 19:58:10,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836897015] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 19:58:10,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 19:58:10,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-02 19:58:10,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019451910] [2022-11-02 19:58:10,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 19:58:10,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 19:58:10,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:58:10,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 19:58:10,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2022-11-02 19:58:10,138 INFO L87 Difference]: Start difference. First operand 2007 states and 6755 transitions. Second operand has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 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 19:58:10,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:58:10,362 INFO L93 Difference]: Finished difference Result 2010 states and 6758 transitions. [2022-11-02 19:58:10,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 19:58:10,362 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 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 19:58:10,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:58:10,372 INFO L225 Difference]: With dead ends: 2010 [2022-11-02 19:58:10,372 INFO L226 Difference]: Without dead ends: 2010 [2022-11-02 19:58:10,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2022-11-02 19:58:10,373 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 19:58:10,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 19:58:10,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2022-11-02 19:58:10,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 2010. [2022-11-02 19:58:10,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1717 states have (on average 3.935934769947583) internal successors, (6758), 2009 states have internal predecessors, (6758), 0 states have call successors, (0), 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 19:58:10,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 6758 transitions. [2022-11-02 19:58:10,437 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 6758 transitions. Word has length 20 [2022-11-02 19:58:10,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:58:10,437 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 6758 transitions. [2022-11-02 19:58:10,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 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 19:58:10,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 6758 transitions. [2022-11-02 19:58:10,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 19:58:10,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:58:10,439 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:58:10,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 19:58:10,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 19:58:10,658 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-02 19:58:10,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:58:10,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1941476421, now seen corresponding path program 3 times [2022-11-02 19:58:10,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:58:10,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423917262] [2022-11-02 19:58:10,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:10,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:12,692 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-02 19:58:12,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:58:12,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423917262] [2022-11-02 19:58:12,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423917262] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 19:58:12,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640175512] [2022-11-02 19:58:12,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 19:58:12,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:12,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:58:12,695 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:58:12,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 19:58:13,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-02 19:58:13,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 19:58:13,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-02 19:58:13,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:58:13,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:13,434 INFO L356 Elim1Store]: treesize reduction 56, result has 37.8 percent of original size [2022-11-02 19:58:13,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 39 [2022-11-02 19:58:13,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 19:58:13,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:13,574 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 25 treesize of output 24 [2022-11-02 19:58:13,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:13,633 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 25 treesize of output 24 [2022-11-02 19:58:13,691 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-02 19:58:13,692 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 1 case distinctions, treesize of input 25 treesize of output 30 [2022-11-02 19:58:13,781 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-02 19:58:13,782 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 1 case distinctions, treesize of input 29 treesize of output 34 [2022-11-02 19:58:13,869 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-02 19:58:13,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-02 19:58:13,920 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 16 treesize of output 18 [2022-11-02 19:58:13,945 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 16 treesize of output 18 [2022-11-02 19:58:13,963 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 16 treesize of output 18 [2022-11-02 19:58:13,984 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 16 treesize of output 18 [2022-11-02 19:58:14,013 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 16 treesize of output 18 [2022-11-02 19:58:14,060 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 19:58:14,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-02 19:58:14,116 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 16 treesize of output 18 [2022-11-02 19:58:14,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-02 19:58:14,159 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 16 treesize of output 18 [2022-11-02 19:58:14,174 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 16 treesize of output 18 [2022-11-02 19:58:14,208 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 16 treesize of output 18 [2022-11-02 19:58:14,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:14,258 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 16 treesize of output 18 [2022-11-02 19:58:14,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 19:58:14,340 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 19:58:14,340 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 12 [2022-11-02 19:58:14,370 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 1 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-02 19:58:14,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 19:58:14,462 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_404 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_404) c_~o_0~0.base) c_~o_0~0.offset)))) is different from false [2022-11-02 19:58:14,471 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_403 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_403) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_404) c_~o_0~0.base) c_~o_0~0.offset)))) is different from false [2022-11-02 19:58:15,459 INFO L356 Elim1Store]: treesize reduction 304, result has 28.5 percent of original size [2022-11-02 19:58:15,460 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 1 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 139 [2022-11-02 19:58:15,582 INFO L356 Elim1Store]: treesize reduction 36, result has 68.1 percent of original size [2022-11-02 19:58:15,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 650 treesize of output 678 [2022-11-02 19:58:15,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 526 treesize of output 518 [2022-11-02 19:58:15,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 518 treesize of output 502 [2022-11-02 19:58:15,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 502 treesize of output 470 [2022-11-02 19:58:16,507 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 20 trivial. 5 not checked. [2022-11-02 19:58:16,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640175512] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 19:58:16,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 19:58:16,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2022-11-02 19:58:16,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837897454] [2022-11-02 19:58:16,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 19:58:16,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-02 19:58:16,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:58:16,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-02 19:58:16,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1109, Unknown=19, NotChecked=142, Total=1482 [2022-11-02 19:58:16,509 INFO L87 Difference]: Start difference. First operand 2010 states and 6758 transitions. Second operand has 39 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:58:17,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:58:17,218 INFO L93 Difference]: Finished difference Result 2740 states and 9258 transitions. [2022-11-02 19:58:17,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 19:58:17,218 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 19:58:17,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:58:17,233 INFO L225 Difference]: With dead ends: 2740 [2022-11-02 19:58:17,233 INFO L226 Difference]: Without dead ends: 2740 [2022-11-02 19:58:17,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=265, Invalid=1284, Unknown=19, NotChecked=154, Total=1722 [2022-11-02 19:58:17,235 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 117 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 755 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 19:58:17,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 0 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 473 Invalid, 0 Unknown, 755 Unchecked, 0.5s Time] [2022-11-02 19:58:17,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2022-11-02 19:58:17,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2193. [2022-11-02 19:58:17,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 1900 states have (on average 4.17421052631579) internal successors, (7931), 2192 states have internal predecessors, (7931), 0 states have call successors, (0), 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 19:58:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 7931 transitions. [2022-11-02 19:58:17,348 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 7931 transitions. Word has length 23 [2022-11-02 19:58:17,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:58:17,349 INFO L495 AbstractCegarLoop]: Abstraction has 2193 states and 7931 transitions. [2022-11-02 19:58:17,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:58:17,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 7931 transitions. [2022-11-02 19:58:17,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 19:58:17,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:58:17,351 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:58:17,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 19:58:17,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-02 19:58:17,566 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-02 19:58:17,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:58:17,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1941476418, now seen corresponding path program 1 times [2022-11-02 19:58:17,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:58:17,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750572130] [2022-11-02 19:58:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:17,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-02 19:58:18,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:58:18,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750572130] [2022-11-02 19:58:18,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750572130] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 19:58:18,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376038845] [2022-11-02 19:58:18,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:18,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:18,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:58:18,844 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:58:18,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 19:58:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:19,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-02 19:58:19,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:58:19,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 19:58:19,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 19:58:19,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:19,159 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 25 treesize of output 24 [2022-11-02 19:58:19,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:19,240 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 25 treesize of output 24 [2022-11-02 19:58:19,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:19,297 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 25 treesize of output 24 [2022-11-02 19:58:19,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:19,352 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 25 treesize of output 24 [2022-11-02 19:58:19,397 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 19:58:19,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-02 19:58:19,439 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 16 treesize of output 18 [2022-11-02 19:58:19,459 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 16 treesize of output 18 [2022-11-02 19:58:19,473 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 16 treesize of output 18 [2022-11-02 19:58:19,488 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 16 treesize of output 18 [2022-11-02 19:58:19,503 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 16 treesize of output 18 [2022-11-02 19:58:19,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:19,541 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 16 treesize of output 18 [2022-11-02 19:58:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-02 19:58:19,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 19:58:19,629 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_521 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_521) c_~o_2~0.base) c_~o_2~0.offset) 4294967296))) is different from false [2022-11-02 19:58:19,637 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_520 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_520) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_521) c_~o_2~0.base) c_~o_2~0.offset) 4294967296))) is different from false [2022-11-02 19:58:20,130 INFO L356 Elim1Store]: treesize reduction 364, result has 14.4 percent of original size [2022-11-02 19:58:20,130 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 1 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 76 [2022-11-02 19:58:20,151 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 19:58:20,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 137 [2022-11-02 19:58:20,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 114 [2022-11-02 19:58:20,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 110 [2022-11-02 19:58:20,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 19:58:20,379 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 12 refuted. 3 times theorem prover too weak. 25 trivial. 5 not checked. [2022-11-02 19:58:20,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376038845] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 19:58:20,380 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 19:58:20,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2022-11-02 19:58:20,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883684895] [2022-11-02 19:58:20,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 19:58:20,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-02 19:58:20,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:58:20,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-02 19:58:20,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=726, Unknown=15, NotChecked=114, Total=992 [2022-11-02 19:58:20,384 INFO L87 Difference]: Start difference. First operand 2193 states and 7931 transitions. Second operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 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 19:58:22,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:58:22,244 INFO L93 Difference]: Finished difference Result 3101 states and 10138 transitions. [2022-11-02 19:58:22,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 19:58:22,245 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 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 19:58:22,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:58:22,260 INFO L225 Difference]: With dead ends: 3101 [2022-11-02 19:58:22,261 INFO L226 Difference]: Without dead ends: 3101 [2022-11-02 19:58:22,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=413, Invalid=1742, Unknown=15, NotChecked=182, Total=2352 [2022-11-02 19:58:22,262 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 96 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 551 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 19:58:22,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 0 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 768 Invalid, 0 Unknown, 551 Unchecked, 0.7s Time] [2022-11-02 19:58:22,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2022-11-02 19:58:22,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 2193. [2022-11-02 19:58:22,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 1900 states have (on average 4.173684210526316) internal successors, (7930), 2192 states have internal predecessors, (7930), 0 states have call successors, (0), 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 19:58:22,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 7930 transitions. [2022-11-02 19:58:22,345 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 7930 transitions. Word has length 23 [2022-11-02 19:58:22,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:58:22,345 INFO L495 AbstractCegarLoop]: Abstraction has 2193 states and 7930 transitions. [2022-11-02 19:58:22,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 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 19:58:22,346 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 7930 transitions. [2022-11-02 19:58:22,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 19:58:22,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:58:22,347 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:58:22,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-02 19:58:22,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:22,562 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2022-11-02 19:58:22,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:58:22,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1941476417, now seen corresponding path program 1 times [2022-11-02 19:58:22,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:58:22,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244453146] [2022-11-02 19:58:22,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:22,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:58:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:25,185 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-02 19:58:25,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:58:25,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244453146] [2022-11-02 19:58:25,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244453146] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 19:58:25,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148119345] [2022-11-02 19:58:25,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:58:25,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 19:58:25,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:58:25,190 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 19:58:25,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_862171c9-2417-4989-92df-ce32c4e10075/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 19:58:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:58:25,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-02 19:58:25,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 19:58:25,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:25,455 INFO L356 Elim1Store]: treesize reduction 56, result has 37.8 percent of original size [2022-11-02 19:58:25,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 39 [2022-11-02 19:58:25,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 19:58:25,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:25,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-02 19:58:25,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:25,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-02 19:58:25,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:25,699 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-02 19:58:25,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:25,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-02 19:58:25,829 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-02 19:58:25,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-02 19:58:25,888 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 14 treesize of output 16 [2022-11-02 19:58:25,907 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 14 treesize of output 16 [2022-11-02 19:58:25,920 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 14 treesize of output 16 [2022-11-02 19:58:25,941 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 14 treesize of output 16 [2022-11-02 19:58:25,958 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 14 treesize of output 16 [2022-11-02 19:58:26,007 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 19:58:26,007 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-02 19:58:26,055 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 14 treesize of output 16 [2022-11-02 19:58:26,071 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 14 treesize of output 16 [2022-11-02 19:58:26,094 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 14 treesize of output 16 [2022-11-02 19:58:26,112 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 14 treesize of output 16 [2022-11-02 19:58:26,132 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 14 treesize of output 16 [2022-11-02 19:58:26,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 19:58:26,181 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 14 treesize of output 16 [2022-11-02 19:58:26,320 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-02 19:58:26,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 19:58:26,749 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_647 (Array Int Int)) (~o_2~0.offset Int) (~o_2~0.base Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_647))) (let ((.cse1 (select (select .cse0 ~o_2~0.base) ~o_2~0.offset))) (or (< (select (select .cse0 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse1 2147483648)) (not (<= 0 .cse1)) (not (<= .cse1 0)))))) (forall ((v_ArrVal_647 (Array Int Int)) (~o_2~0.offset Int) (~o_2~0.base Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_647))) (let ((.cse2 (select (select .cse3 ~o_2~0.base) ~o_2~0.offset))) (or (<= .cse2 0) (< 9223372039002259455 .cse2) (< (select (select .cse3 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse2 2147483648))))))) is different from false [2022-11-02 19:58:26,794 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_647 (Array Int Int)) (~o_2~0.offset Int) (v_ArrVal_646 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_646) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_647))) (let ((.cse0 (select (select .cse1 ~o_2~0.base) ~o_2~0.offset))) (or (< 9223372039002259455 .cse0) (< (select (select .cse1 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse0 2147483648)) (<= .cse0 0))))) (forall ((v_ArrVal_647 (Array Int Int)) (~o_2~0.offset Int) (v_ArrVal_646 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_646) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_647))) (let ((.cse2 (select (select .cse3 ~o_2~0.base) ~o_2~0.offset))) (or (not (<= .cse2 0)) (< (select (select .cse3 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse2 2147483648)) (not (<= 0 .cse2))))))) is different from false [2022-11-02 19:59:32,247 INFO L356 Elim1Store]: treesize reduction 576, result has 32.2 percent of original size [2022-11-02 19:59:32,248 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 517 treesize of output 479 [2022-11-02 19:59:32,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 19:59:32,895 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 19:59:32,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 764394 treesize of output 754103 [2022-11-02 19:59:36,083 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 19:59:36,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 753757 treesize of output 680038 [2022-11-02 19:59:39,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 19:59:39,761 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 19:59:39,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 680146 treesize of output 666966 [2022-11-02 19:59:43,556 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 19:59:43,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 666717 treesize of output 629862 [2022-11-02 19:59:46,988 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 19:59:46,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 629853 treesize of output 611430 [2022-11-02 19:59:50,469 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 19:59:50,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 611421 treesize of output 610886 [2022-11-02 19:59:53,893 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 19:59:53,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 610877 treesize of output 610750 [2022-11-02 19:59:57,265 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 19:59:57,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 610741 treesize of output 610478