./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_step2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/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_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/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 64bit --witnessprinter.graph.data.programhash 76fcbcb67039c0a78cfe1723cb1895d2882967fdc056ee8f9638db41d873b34f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:23:45,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:23:45,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:23:45,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:23:45,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:23:45,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:23:45,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:23:45,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:23:45,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:23:45,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:23:45,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:23:45,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:23:45,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:23:45,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:23:45,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:23:45,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:23:45,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:23:45,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:23:45,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:23:45,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:23:45,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:23:45,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:23:45,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:23:45,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:23:45,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:23:45,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:23:45,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:23:45,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:23:45,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:23:45,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:23:45,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:23:45,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:23:45,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:23:45,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:23:45,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:23:45,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:23:45,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:23:45,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:23:45,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:23:45,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:23:45,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:23:45,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-02 20:23:45,889 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:23:45,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:23:45,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:23:45,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:23:45,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:23:45,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:23:45,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:23:45,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:23:45,896 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:23:45,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:23:45,897 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:23:45,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:23:45,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:23:45,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:23:45,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:23:45,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:23:45,898 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:23:45,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:23:45,899 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:23:45,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:23:45,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:23:45,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:23:45,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:23:45,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:23:45,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:23:45,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:23:45,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:23:45,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:23:45,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:23:45,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:23:45,903 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_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76fcbcb67039c0a78cfe1723cb1895d2882967fdc056ee8f9638db41d873b34f [2022-11-02 20:23:46,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:23:46,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:23:46,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:23:46,238 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:23:46,239 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:23:46,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-crafted/Cairo_step2-2.c [2022-11-02 20:23:46,314 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/data/081a9b617/76be6558bf254f49a18f85692ce6b9ca/FLAGbedf6e554 [2022-11-02 20:23:46,868 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:23:46,869 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/sv-benchmarks/c/termination-crafted/Cairo_step2-2.c [2022-11-02 20:23:46,875 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/data/081a9b617/76be6558bf254f49a18f85692ce6b9ca/FLAGbedf6e554 [2022-11-02 20:23:47,216 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/data/081a9b617/76be6558bf254f49a18f85692ce6b9ca [2022-11-02 20:23:47,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:23:47,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:23:47,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:23:47,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:23:47,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:23:47,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf8aa95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47, skipping insertion in model container [2022-11-02 20:23:47,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:23:47,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:23:47,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:23:47,494 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:23:47,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:23:47,520 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:23:47,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47 WrapperNode [2022-11-02 20:23:47,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:23:47,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:23:47,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:23:47,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:23:47,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,556 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-11-02 20:23:47,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:23:47,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:23:47,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:23:47,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:23:47,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,577 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:23:47,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:23:47,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:23:47,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:23:47,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47" (1/1) ... [2022-11-02 20:23:47,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:23:47,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:47,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:23:47,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:23:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:23:47,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:23:47,772 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:23:47,774 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:23:47,864 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:23:47,872 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:23:47,873 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:23:47,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:23:47 BoogieIcfgContainer [2022-11-02 20:23:47,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:23:47,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:23:47,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:23:47,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:23:47,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:23:47" (1/3) ... [2022-11-02 20:23:47,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279cd4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:23:47, skipping insertion in model container [2022-11-02 20:23:47,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:23:47" (2/3) ... [2022-11-02 20:23:47,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279cd4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:23:47, skipping insertion in model container [2022-11-02 20:23:47,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:23:47" (3/3) ... [2022-11-02 20:23:47,887 INFO L112 eAbstractionObserver]: Analyzing ICFG Cairo_step2-2.c [2022-11-02 20:23:47,909 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:23:47,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 20:23:47,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:23:47,977 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;@194fb6f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:23:47,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-02 20:23:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:47,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:23:47,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:23:47,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:23:47,993 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-02 20:23:47,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:47,999 INFO L85 PathProgramCache]: Analyzing trace with hash 28693987, now seen corresponding path program 1 times [2022-11-02 20:23:48,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:48,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251845414] [2022-11-02 20:23:48,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:48,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:48,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:48,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251845414] [2022-11-02 20:23:48,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251845414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:48,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:48,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:23:48,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232876475] [2022-11-02 20:23:48,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:48,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:48,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:48,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:48,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:48,244 INFO L87 Difference]: Start difference. First operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:23:48,279 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2022-11-02 20:23:48,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:48,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 20:23:48,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:23:48,297 INFO L225 Difference]: With dead ends: 16 [2022-11-02 20:23:48,309 INFO L226 Difference]: Without dead ends: 7 [2022-11-02 20:23:48,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:48,315 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:23:48,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:23:48,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-11-02 20:23:48,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-02 20:23:48,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-11-02 20:23:48,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2022-11-02 20:23:48,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:23:48,376 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-11-02 20:23:48,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,377 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-11-02 20:23:48,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:23:48,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:23:48,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:23:48,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:23:48,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-02 20:23:48,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:48,381 INFO L85 PathProgramCache]: Analyzing trace with hash 889513645, now seen corresponding path program 1 times [2022-11-02 20:23:48,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:48,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208443188] [2022-11-02 20:23:48,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:48,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:48,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:48,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:48,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208443188] [2022-11-02 20:23:48,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208443188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:23:48,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:23:48,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:23:48,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325032855] [2022-11-02 20:23:48,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:23:48,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:23:48,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:48,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:23:48,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:48,476 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:23:48,506 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-11-02 20:23:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:23:48,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-02 20:23:48,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:23:48,511 INFO L225 Difference]: With dead ends: 11 [2022-11-02 20:23:48,511 INFO L226 Difference]: Without dead ends: 10 [2022-11-02 20:23:48,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:23:48,514 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:23:48,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:23:48,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-02 20:23:48,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-02 20:23:48,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-11-02 20:23:48,524 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2022-11-02 20:23:48,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:23:48,525 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-11-02 20:23:48,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,525 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-11-02 20:23:48,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:23:48,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:23:48,528 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-02 20:23:48,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:23:48,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-02 20:23:48,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:48,530 INFO L85 PathProgramCache]: Analyzing trace with hash -447174367, now seen corresponding path program 1 times [2022-11-02 20:23:48,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:48,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172524237] [2022-11-02 20:23:48,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:48,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:48,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:48,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:48,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172524237] [2022-11-02 20:23:48,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172524237] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:23:48,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502840489] [2022-11-02 20:23:48,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:48,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:48,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:48,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:23:48,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:23:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:48,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:23:48,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:23:48,788 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:48,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:23:48,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:48,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502840489] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:23:48,850 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:23:48,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-02 20:23:48,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380792336] [2022-11-02 20:23:48,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:23:48,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:23:48,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:48,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:23:48,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:48,854 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:23:48,932 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-11-02 20:23:48,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:23:48,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 20:23:48,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:23:48,933 INFO L225 Difference]: With dead ends: 20 [2022-11-02 20:23:48,934 INFO L226 Difference]: Without dead ends: 19 [2022-11-02 20:23:48,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:23:48,936 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:23:48,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:23:48,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-02 20:23:48,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-02 20:23:48,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-11-02 20:23:48,949 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 9 [2022-11-02 20:23:48,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:23:48,949 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-11-02 20:23:48,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:48,950 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-11-02 20:23:48,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-02 20:23:48,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:23:48,952 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2022-11-02 20:23:49,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:23:49,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-02 20:23:49,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-02 20:23:49,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:49,171 INFO L85 PathProgramCache]: Analyzing trace with hash -169525843, now seen corresponding path program 2 times [2022-11-02 20:23:49,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:49,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399409637] [2022-11-02 20:23:49,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:49,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:49,353 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:49,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:49,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399409637] [2022-11-02 20:23:49,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399409637] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:23:49,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41127876] [2022-11-02 20:23:49,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:23:49,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:49,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:49,367 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:23:49,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:23:49,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:23:49,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:23:49,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:23:49,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:23:49,523 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:49,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:23:49,703 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:49,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41127876] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:23:49,704 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:23:49,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-02 20:23:49,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708523055] [2022-11-02 20:23:49,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:23:49,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:23:49,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:49,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:23:49,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:23:49,707 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:49,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:23:49,816 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-02 20:23:49,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:23:49,817 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-02 20:23:49,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:23:49,818 INFO L225 Difference]: With dead ends: 38 [2022-11-02 20:23:49,818 INFO L226 Difference]: Without dead ends: 37 [2022-11-02 20:23:49,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:23:49,821 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:23:49,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:23:49,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-02 20:23:49,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-02 20:23:49,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 36 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:49,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2022-11-02 20:23:49,832 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 18 [2022-11-02 20:23:49,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:23:49,833 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2022-11-02 20:23:49,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:49,833 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2022-11-02 20:23:49,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:23:49,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:23:49,835 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 1, 1, 1, 1] [2022-11-02 20:23:49,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:23:50,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:50,063 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-02 20:23:50,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:50,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1336283181, now seen corresponding path program 3 times [2022-11-02 20:23:50,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:50,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707867093] [2022-11-02 20:23:50,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:50,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:50,505 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:50,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:50,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707867093] [2022-11-02 20:23:50,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707867093] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:23:50,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727912733] [2022-11-02 20:23:50,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:23:50,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:50,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:50,508 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:23:50,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:23:50,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-02 20:23:50,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:23:50,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:23:50,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:23:50,725 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:50,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:23:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:51,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727912733] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:23:51,166 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:23:51,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-02 20:23:51,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569239021] [2022-11-02 20:23:51,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:23:51,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 20:23:51,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:51,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 20:23:51,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:23:51,174 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:51,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:23:51,344 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2022-11-02 20:23:51,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-02 20:23:51,346 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-02 20:23:51,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:23:51,353 INFO L225 Difference]: With dead ends: 74 [2022-11-02 20:23:51,353 INFO L226 Difference]: Without dead ends: 73 [2022-11-02 20:23:51,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:23:51,362 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:23:51,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:23:51,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-02 20:23:51,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-02 20:23:51,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.0138888888888888) internal successors, (73), 72 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:51,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2022-11-02 20:23:51,396 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 36 [2022-11-02 20:23:51,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:23:51,397 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2022-11-02 20:23:51,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:51,397 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2022-11-02 20:23:51,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-02 20:23:51,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:23:51,402 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 1, 1, 1, 1] [2022-11-02 20:23:51,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:23:51,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:51,618 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-02 20:23:51,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:51,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1274074413, now seen corresponding path program 4 times [2022-11-02 20:23:51,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:51,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691228229] [2022-11-02 20:23:51,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:51,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:52,721 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 759 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:52,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:52,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691228229] [2022-11-02 20:23:52,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691228229] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:23:52,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32494295] [2022-11-02 20:23:52,722 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:23:52,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:52,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:52,730 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:23:52,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:23:52,818 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:23:52,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:23:52,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-02 20:23:52,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:23:53,092 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 759 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:53,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:23:54,403 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 759 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:54,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32494295] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:23:54,403 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:23:54,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-02 20:23:54,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799054285] [2022-11-02 20:23:54,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:23:54,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-02 20:23:54,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:23:54,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-02 20:23:54,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-02 20:23:54,409 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:54,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:23:54,743 INFO L93 Difference]: Finished difference Result 146 states and 169 transitions. [2022-11-02 20:23:54,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-02 20:23:54,744 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 0 states have call successors, (0), 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 72 [2022-11-02 20:23:54,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:23:54,753 INFO L225 Difference]: With dead ends: 146 [2022-11-02 20:23:54,753 INFO L226 Difference]: Without dead ends: 145 [2022-11-02 20:23:54,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 119 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-02 20:23:54,759 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:23:54,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:23:54,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-02 20:23:54,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2022-11-02 20:23:54,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.0069444444444444) internal successors, (145), 144 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:54,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 145 transitions. [2022-11-02 20:23:54,795 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 145 transitions. Word has length 72 [2022-11-02 20:23:54,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:23:54,797 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 145 transitions. [2022-11-02 20:23:54,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:23:54,798 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 145 transitions. [2022-11-02 20:23:54,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-02 20:23:54,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:23:54,803 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 1, 1, 1, 1] [2022-11-02 20:23:54,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:23:55,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-02 20:23:55,034 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-02 20:23:55,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:23:55,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2081087277, now seen corresponding path program 5 times [2022-11-02 20:23:55,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:23:55,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076896337] [2022-11-02 20:23:55,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:23:55,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:23:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:23:57,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 0 proven. 3243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:57,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:23:57,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076896337] [2022-11-02 20:23:57,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076896337] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:23:57,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807288769] [2022-11-02 20:23:57,641 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-02 20:23:57,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:23:57,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:23:57,643 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:23:57,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:23:57,835 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-02 20:23:57,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:23:57,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-02 20:23:57,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:23:58,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 0 proven. 3243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:23:58,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:24:02,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 0 proven. 3243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:02,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807288769] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:24:02,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:24:02,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-02 20:24:02,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867208420] [2022-11-02 20:24:02,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:24:02,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-02 20:24:02,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:02,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-02 20:24:02,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-02 20:24:02,612 INFO L87 Difference]: Start difference. First operand 145 states and 145 transitions. Second operand has 96 states, 95 states have (on average 3.0105263157894737) internal successors, (286), 96 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:03,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:03,383 INFO L93 Difference]: Finished difference Result 290 states and 337 transitions. [2022-11-02 20:24:03,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-02 20:24:03,384 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 3.0105263157894737) internal successors, (286), 96 states have internal predecessors, (286), 0 states have call successors, (0), 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 144 [2022-11-02 20:24:03,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:03,390 INFO L225 Difference]: With dead ends: 290 [2022-11-02 20:24:03,390 INFO L226 Difference]: Without dead ends: 289 [2022-11-02 20:24:03,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 239 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-02 20:24:03,396 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:03,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:24:03,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-11-02 20:24:03,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2022-11-02 20:24:03,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 288 states have (on average 1.0034722222222223) internal successors, (289), 288 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:03,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 289 transitions. [2022-11-02 20:24:03,451 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 289 transitions. Word has length 144 [2022-11-02 20:24:03,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:03,453 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 289 transitions. [2022-11-02 20:24:03,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 3.0105263157894737) internal successors, (286), 96 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:03,454 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 289 transitions. [2022-11-02 20:24:03,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-11-02 20:24:03,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:03,471 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 1, 1, 1, 1] [2022-11-02 20:24:03,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:03,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 20:24:03,686 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-02 20:24:03,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:03,687 INFO L85 PathProgramCache]: Analyzing trace with hash 223408941, now seen corresponding path program 6 times [2022-11-02 20:24:03,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:03,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752062289] [2022-11-02 20:24:03,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:03,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:12,873 INFO L134 CoverageAnalysis]: Checked inductivity of 13395 backedges. 0 proven. 13395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:12,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:12,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752062289] [2022-11-02 20:24:12,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752062289] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:24:12,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735127109] [2022-11-02 20:24:12,874 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-02 20:24:12,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:12,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:12,876 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:12,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:24:13,283 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-02 20:24:13,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:24:13,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-02 20:24:13,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:24:13,969 INFO L134 CoverageAnalysis]: Checked inductivity of 13395 backedges. 0 proven. 13395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:13,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:24:28,217 INFO L134 CoverageAnalysis]: Checked inductivity of 13395 backedges. 0 proven. 13395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:28,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735127109] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:24:28,218 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:24:28,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-02 20:24:28,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925228129] [2022-11-02 20:24:28,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:24:28,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-02 20:24:28,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:24:28,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-02 20:24:28,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-02 20:24:28,247 INFO L87 Difference]: Start difference. First operand 289 states and 289 transitions. Second operand has 192 states, 191 states have (on average 3.005235602094241) internal successors, (574), 192 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:30,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:24:30,046 INFO L93 Difference]: Finished difference Result 578 states and 673 transitions. [2022-11-02 20:24:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-02 20:24:30,047 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 3.005235602094241) internal successors, (574), 192 states have internal predecessors, (574), 0 states have call successors, (0), 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 288 [2022-11-02 20:24:30,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:24:30,050 INFO L225 Difference]: With dead ends: 578 [2022-11-02 20:24:30,051 INFO L226 Difference]: Without dead ends: 577 [2022-11-02 20:24:30,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 479 SyntacticMatches, 1 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-02 20:24:30,056 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:24:30,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-02 20:24:30,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-11-02 20:24:30,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2022-11-02 20:24:30,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 576 states have (on average 1.0017361111111112) internal successors, (577), 576 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:30,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 577 transitions. [2022-11-02 20:24:30,086 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 577 transitions. Word has length 288 [2022-11-02 20:24:30,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:24:30,087 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 577 transitions. [2022-11-02 20:24:30,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 3.005235602094241) internal successors, (574), 192 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:24:30,088 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 577 transitions. [2022-11-02 20:24:30,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2022-11-02 20:24:30,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:24:30,102 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 1, 1, 1, 1] [2022-11-02 20:24:30,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:24:30,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:30,320 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-02 20:24:30,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:24:30,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1943725267, now seen corresponding path program 7 times [2022-11-02 20:24:30,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:24:30,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309518171] [2022-11-02 20:24:30,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:24:30,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:24:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 54435 backedges. 0 proven. 54435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:24:58,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:24:58,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309518171] [2022-11-02 20:24:58,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309518171] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:24:58,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387712756] [2022-11-02 20:24:58,930 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-02 20:24:58,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:24:58,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:24:58,935 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:24:58,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 20:24:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:24:59,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-02 20:24:59,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:25:00,304 INFO L134 CoverageAnalysis]: Checked inductivity of 54435 backedges. 0 proven. 54435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:25:00,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:25:53,079 INFO L134 CoverageAnalysis]: Checked inductivity of 54435 backedges. 0 proven. 54435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:25:53,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387712756] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:25:53,079 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:25:53,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-11-02 20:25:53,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825343412] [2022-11-02 20:25:53,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:25:53,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-11-02 20:25:53,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:25:53,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-11-02 20:25:53,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-02 20:25:53,123 INFO L87 Difference]: Start difference. First operand 577 states and 577 transitions. Second operand has 384 states, 383 states have (on average 3.0026109660574414) internal successors, (1150), 384 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:59,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:25:59,497 INFO L93 Difference]: Finished difference Result 1154 states and 1345 transitions. [2022-11-02 20:25:59,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-11-02 20:25:59,498 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 3.0026109660574414) internal successors, (1150), 384 states have internal predecessors, (1150), 0 states have call successors, (0), 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 576 [2022-11-02 20:25:59,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:25:59,509 INFO L225 Difference]: With dead ends: 1154 [2022-11-02 20:25:59,509 INFO L226 Difference]: Without dead ends: 1153 [2022-11-02 20:25:59,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1342 GetRequests, 959 SyntacticMatches, 1 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 68.0s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-02 20:25:59,526 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:25:59,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-02 20:25:59,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2022-11-02 20:25:59,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1153. [2022-11-02 20:25:59,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.0008680555555556) internal successors, (1153), 1152 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:59,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1153 transitions. [2022-11-02 20:25:59,585 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1153 transitions. Word has length 576 [2022-11-02 20:25:59,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:25:59,586 INFO L495 AbstractCegarLoop]: Abstraction has 1153 states and 1153 transitions. [2022-11-02 20:25:59,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 3.0026109660574414) internal successors, (1150), 384 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:25:59,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1153 transitions. [2022-11-02 20:25:59,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1153 [2022-11-02 20:25:59,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:25:59,678 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 382, 1, 1, 1, 1] [2022-11-02 20:25:59,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-02 20:25:59,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0fdf63-4a4e-44d7-8b41-cab18bb09e48/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-02 20:25:59,894 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-02 20:25:59,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:25:59,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1158845651, now seen corresponding path program 8 times [2022-11-02 20:25:59,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:25:59,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691390019] [2022-11-02 20:25:59,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:25:59,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat