./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/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_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b --- 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 20:20:59,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:20:59,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:20:59,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:20:59,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:20:59,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:20:59,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:20:59,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:20:59,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:20:59,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:20:59,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:20:59,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:20:59,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:20:59,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:20:59,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:20:59,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:20:59,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:20:59,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:20:59,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:20:59,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:20:59,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:20:59,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:20:59,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:20:59,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:20:59,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:20:59,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:20:59,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:20:59,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:20:59,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:20:59,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:20:59,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:20:59,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:20:59,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:20:59,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:20:59,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:20:59,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:20:59,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:20:59,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:20:59,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:20:59,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:20:59,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:20:59,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 20:20:59,614 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:20:59,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:20:59,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:20:59,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:20:59,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:20:59,618 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:20:59,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:20:59,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:20:59,619 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:20:59,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:20:59,621 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:20:59,621 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:20:59,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:20:59,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:20:59,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:20:59,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:20:59,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:20:59,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:20:59,623 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:20:59,623 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:20:59,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:20:59,624 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:20:59,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:20:59,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:20:59,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:20:59,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:20:59,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:20:59,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:20:59,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:20:59,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:20:59,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:20:59,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:20:59,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:20:59,629 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_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b [2022-11-02 20:21:00,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:21:00,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:21:00,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:21:00,068 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:21:00,069 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:21:00,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2022-11-02 20:21:00,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/data/61a8bcd0e/45684a135c2241bdb28199a2d3467af8/FLAG9c8e8a128 [2022-11-02 20:21:00,820 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:21:00,821 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2022-11-02 20:21:00,836 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/data/61a8bcd0e/45684a135c2241bdb28199a2d3467af8/FLAG9c8e8a128 [2022-11-02 20:21:01,087 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/data/61a8bcd0e/45684a135c2241bdb28199a2d3467af8 [2022-11-02 20:21:01,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:21:01,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:21:01,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:01,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:21:01,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:21:01,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:01,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f069599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01, skipping insertion in model container [2022-11-02 20:21:01,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:01,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:21:01,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:21:01,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i[30687,30700] [2022-11-02 20:21:01,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:01,706 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:21:01,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i[30687,30700] [2022-11-02 20:21:01,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:21:01,841 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:21:01,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01 WrapperNode [2022-11-02 20:21:01,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:21:01,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:01,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:21:01,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:21:01,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:01,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:01,930 INFO L138 Inliner]: procedures = 170, calls = 35, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 112 [2022-11-02 20:21:01,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:21:01,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:21:01,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:21:01,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:21:01,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:01,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:01,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:01,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:01,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:01,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:01,991 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:01,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:01,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:21:02,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:21:02,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:21:02,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:21:02,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01" (1/1) ... [2022-11-02 20:21:02,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:21:02,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:21:02,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:21:02,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:21:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:21:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-02 20:21:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-02 20:21:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:21:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:21:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:21:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:21:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:21:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:21:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:21:02,110 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:21:02,357 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:21:02,359 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:21:02,717 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:21:02,965 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:21:02,965 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 20:21:02,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:02 BoogieIcfgContainer [2022-11-02 20:21:02,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:21:02,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:21:02,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:21:02,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:21:02,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:21:01" (1/3) ... [2022-11-02 20:21:02,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad4f54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:21:02, skipping insertion in model container [2022-11-02 20:21:02,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:21:01" (2/3) ... [2022-11-02 20:21:02,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad4f54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:21:02, skipping insertion in model container [2022-11-02 20:21:02,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:21:02" (3/3) ... [2022-11-02 20:21:02,991 INFO L112 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur.i [2022-11-02 20:21:03,009 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:21:03,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:21:03,036 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-02 20:21:03,036 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:21:03,128 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:21:03,185 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:21:03,206 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 110 transitions, 225 flow [2022-11-02 20:21:03,219 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 110 transitions, 225 flow [2022-11-02 20:21:03,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 110 transitions, 225 flow [2022-11-02 20:21:03,324 INFO L130 PetriNetUnfolder]: 10/121 cut-off events. [2022-11-02 20:21:03,324 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:21:03,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 121 events. 10/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 147 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2022-11-02 20:21:03,334 INFO L118 LiptonReduction]: Number of co-enabled transitions 2156 [2022-11-02 20:21:09,498 INFO L133 LiptonReduction]: Checked pairs total: 2485 [2022-11-02 20:21:09,499 INFO L135 LiptonReduction]: Total number of compositions: 115 [2022-11-02 20:21:09,509 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 31 transitions, 67 flow [2022-11-02 20:21:09,533 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 112 states, 91 states have (on average 2.3516483516483517) internal successors, (214), 111 states have internal predecessors, (214), 0 states have call successors, (0), 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 20:21:09,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:21:09,562 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;@533e4aec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:21:09,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-02 20:21:09,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 91 states have (on average 2.3516483516483517) internal successors, (214), 111 states have internal predecessors, (214), 0 states have call successors, (0), 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 20:21:09,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:21:09,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:09,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:21:09,574 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 20:21:09,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:09,581 INFO L85 PathProgramCache]: Analyzing trace with hash 536324057, now seen corresponding path program 1 times [2022-11-02 20:21:09,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:09,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985246253] [2022-11-02 20:21:09,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:09,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:09,956 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 20:21:09,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:09,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985246253] [2022-11-02 20:21:09,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985246253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:09,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:09,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:21:09,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988089413] [2022-11-02 20:21:09,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:09,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:09,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:10,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:10,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:10,005 INFO L87 Difference]: Start difference. First operand has 112 states, 91 states have (on average 2.3516483516483517) internal successors, (214), 111 states have internal predecessors, (214), 0 states have call successors, (0), 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), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:10,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:10,108 INFO L93 Difference]: Finished difference Result 79 states and 140 transitions. [2022-11-02 20:21:10,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:10,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 20:21:10,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:10,126 INFO L225 Difference]: With dead ends: 79 [2022-11-02 20:21:10,126 INFO L226 Difference]: Without dead ends: 79 [2022-11-02 20:21:10,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:10,133 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:10,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:21:10,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-02 20:21:10,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-11-02 20:21:10,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 72 states have (on average 1.9444444444444444) internal successors, (140), 78 states have internal predecessors, (140), 0 states have call successors, (0), 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 20:21:10,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 140 transitions. [2022-11-02 20:21:10,186 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 140 transitions. Word has length 5 [2022-11-02 20:21:10,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:10,187 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 140 transitions. [2022-11-02 20:21:10,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:10,188 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 140 transitions. [2022-11-02 20:21:10,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:21:10,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:10,189 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-02 20:21:10,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:21:10,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-02 20:21:10,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:10,190 INFO L85 PathProgramCache]: Analyzing trace with hash -553705509, now seen corresponding path program 1 times [2022-11-02 20:21:10,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:10,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119821748] [2022-11-02 20:21:10,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:10,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:21:10,213 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:21:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:21:10,245 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:21:10,245 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:21:10,248 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2022-11-02 20:21:10,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-11-02 20:21:10,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-11-02 20:21:10,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-11-02 20:21:10,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-11-02 20:21:10,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-11-02 20:21:10,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-11-02 20:21:10,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-11-02 20:21:10,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-11-02 20:21:10,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-11-02 20:21:10,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-11-02 20:21:10,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-11-02 20:21:10,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2022-11-02 20:21:10,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-11-02 20:21:10,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-11-02 20:21:10,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-11-02 20:21:10,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-11-02 20:21:10,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-11-02 20:21:10,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-11-02 20:21:10,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-11-02 20:21:10,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-11-02 20:21:10,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:21:10,260 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-02 20:21:10,263 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:21:10,263 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-02 20:21:10,320 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:21:10,333 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:21:10,333 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 188 transitions, 388 flow [2022-11-02 20:21:10,334 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 188 transitions, 388 flow [2022-11-02 20:21:10,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 188 transitions, 388 flow [2022-11-02 20:21:10,459 INFO L130 PetriNetUnfolder]: 19/212 cut-off events. [2022-11-02 20:21:10,459 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:21:10,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 212 events. 19/212 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 551 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 167. Up to 6 conditions per place. [2022-11-02 20:21:10,481 INFO L118 LiptonReduction]: Number of co-enabled transitions 16324 [2022-11-02 20:21:18,754 INFO L133 LiptonReduction]: Checked pairs total: 31261 [2022-11-02 20:21:18,755 INFO L135 LiptonReduction]: Total number of compositions: 172 [2022-11-02 20:21:18,765 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 70 transitions, 152 flow [2022-11-02 20:21:19,024 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4845 states, 4594 states have (on average 3.1843709185894644) internal successors, (14629), 4844 states have internal predecessors, (14629), 0 states have call successors, (0), 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 20:21:19,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:21:19,029 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;@533e4aec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:21:19,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-02 20:21:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 4845 states, 4594 states have (on average 3.1843709185894644) internal successors, (14629), 4844 states have internal predecessors, (14629), 0 states have call successors, (0), 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 20:21:19,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:21:19,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:19,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:21:19,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-11-02 20:21:19,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:19,049 INFO L85 PathProgramCache]: Analyzing trace with hash 954579807, now seen corresponding path program 1 times [2022-11-02 20:21:19,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:19,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474188656] [2022-11-02 20:21:19,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:19,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:19,082 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 20:21:19,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:19,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474188656] [2022-11-02 20:21:19,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474188656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:19,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:19,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:21:19,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49258498] [2022-11-02 20:21:19,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:19,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:21:19,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:19,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:21:19,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:21:19,101 INFO L87 Difference]: Start difference. First operand has 4845 states, 4594 states have (on average 3.1843709185894644) internal successors, (14629), 4844 states have internal predecessors, (14629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:19,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:19,266 INFO L93 Difference]: Finished difference Result 2979 states and 8747 transitions. [2022-11-02 20:21:19,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:21:19,267 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 20:21:19,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:19,306 INFO L225 Difference]: With dead ends: 2979 [2022-11-02 20:21:19,307 INFO L226 Difference]: Without dead ends: 2979 [2022-11-02 20:21:19,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:21:19,313 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:19,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:21:19,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2022-11-02 20:21:19,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2979. [2022-11-02 20:21:19,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2930 states have (on average 2.9853242320819113) internal successors, (8747), 2978 states have internal predecessors, (8747), 0 states have call successors, (0), 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 20:21:19,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 8747 transitions. [2022-11-02 20:21:19,517 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 8747 transitions. Word has length 5 [2022-11-02 20:21:19,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:19,518 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 8747 transitions. [2022-11-02 20:21:19,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:19,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 8747 transitions. [2022-11-02 20:21:19,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:21:19,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:19,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:21:19,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:21:19,520 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-11-02 20:21:19,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:19,521 INFO L85 PathProgramCache]: Analyzing trace with hash -472796091, now seen corresponding path program 1 times [2022-11-02 20:21:19,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:19,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893652757] [2022-11-02 20:21:19,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:19,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:19,619 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 20:21:19,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:19,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893652757] [2022-11-02 20:21:19,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893652757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:19,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:19,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:21:19,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821058541] [2022-11-02 20:21:19,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:19,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:19,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:19,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:19,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:19,623 INFO L87 Difference]: Start difference. First operand 2979 states and 8747 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 20:21:19,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:19,977 INFO L93 Difference]: Finished difference Result 3486 states and 9885 transitions. [2022-11-02 20:21:19,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:19,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 20:21:19,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:20,004 INFO L225 Difference]: With dead ends: 3486 [2022-11-02 20:21:20,005 INFO L226 Difference]: Without dead ends: 3486 [2022-11-02 20:21:20,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:20,010 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 50 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:20,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 35 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:21:20,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3486 states. [2022-11-02 20:21:20,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3486 to 3361. [2022-11-02 20:21:20,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3361 states, 3312 states have (on average 2.945350241545894) internal successors, (9755), 3360 states have internal predecessors, (9755), 0 states have call successors, (0), 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 20:21:20,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 9755 transitions. [2022-11-02 20:21:20,174 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 9755 transitions. Word has length 6 [2022-11-02 20:21:20,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:20,175 INFO L495 AbstractCegarLoop]: Abstraction has 3361 states and 9755 transitions. [2022-11-02 20:21:20,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 20:21:20,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 9755 transitions. [2022-11-02 20:21:20,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:21:20,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:20,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:21:20,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:21:20,178 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-11-02 20:21:20,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:20,179 INFO L85 PathProgramCache]: Analyzing trace with hash -472796090, now seen corresponding path program 1 times [2022-11-02 20:21:20,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:20,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137600595] [2022-11-02 20:21:20,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:20,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:20,246 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 20:21:20,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:20,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137600595] [2022-11-02 20:21:20,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137600595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:20,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:20,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:21:20,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641399822] [2022-11-02 20:21:20,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:20,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:20,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:20,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:20,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:20,249 INFO L87 Difference]: Start difference. First operand 3361 states and 9755 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 20:21:20,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:20,374 INFO L93 Difference]: Finished difference Result 2593 states and 7623 transitions. [2022-11-02 20:21:20,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:20,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 20:21:20,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:20,452 INFO L225 Difference]: With dead ends: 2593 [2022-11-02 20:21:20,452 INFO L226 Difference]: Without dead ends: 2593 [2022-11-02 20:21:20,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:20,455 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:20,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 14 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:21:20,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2593 states. [2022-11-02 20:21:20,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2593 to 2593. [2022-11-02 20:21:20,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2593 states, 2568 states have (on average 2.9684579439252334) internal successors, (7623), 2592 states have internal predecessors, (7623), 0 states have call successors, (0), 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 20:21:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 7623 transitions. [2022-11-02 20:21:20,559 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 7623 transitions. Word has length 6 [2022-11-02 20:21:20,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:20,559 INFO L495 AbstractCegarLoop]: Abstraction has 2593 states and 7623 transitions. [2022-11-02 20:21:20,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 20:21:20,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 7623 transitions. [2022-11-02 20:21:20,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 20:21:20,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:20,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:20,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:21:20,564 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-11-02 20:21:20,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:20,565 INFO L85 PathProgramCache]: Analyzing trace with hash 2036999304, now seen corresponding path program 1 times [2022-11-02 20:21:20,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:20,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328046429] [2022-11-02 20:21:20,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:20,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:20,662 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 20:21:20,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:20,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328046429] [2022-11-02 20:21:20,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328046429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:20,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:20,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:21:20,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910854938] [2022-11-02 20:21:20,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:20,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:20,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:20,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:20,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:20,665 INFO L87 Difference]: Start difference. First operand 2593 states and 7623 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 20:21:20,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:20,869 INFO L93 Difference]: Finished difference Result 2593 states and 7509 transitions. [2022-11-02 20:21:20,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:20,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-02 20:21:20,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:20,889 INFO L225 Difference]: With dead ends: 2593 [2022-11-02 20:21:20,889 INFO L226 Difference]: Without dead ends: 2593 [2022-11-02 20:21:20,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:20,890 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 29 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:20,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 36 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:21:20,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2593 states. [2022-11-02 20:21:21,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2593 to 2593. [2022-11-02 20:21:21,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2593 states, 2563 states have (on average 2.9297698010144364) internal successors, (7509), 2592 states have internal predecessors, (7509), 0 states have call successors, (0), 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 20:21:21,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 7509 transitions. [2022-11-02 20:21:21,062 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 7509 transitions. Word has length 10 [2022-11-02 20:21:21,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:21,063 INFO L495 AbstractCegarLoop]: Abstraction has 2593 states and 7509 transitions. [2022-11-02 20:21:21,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 20:21:21,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 7509 transitions. [2022-11-02 20:21:21,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 20:21:21,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:21,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:21,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:21:21,065 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-11-02 20:21:21,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:21,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2036953734, now seen corresponding path program 1 times [2022-11-02 20:21:21,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:21,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964804144] [2022-11-02 20:21:21,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:21,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:21,335 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 20:21:21,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:21,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964804144] [2022-11-02 20:21:21,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964804144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:21,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:21,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:21:21,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840733655] [2022-11-02 20:21:21,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:21,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:21:21,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:21,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:21:21,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:21:21,352 INFO L87 Difference]: Start difference. First operand 2593 states and 7509 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 20:21:21,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:21,827 INFO L93 Difference]: Finished difference Result 3192 states and 9132 transitions. [2022-11-02 20:21:21,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:21:21,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-02 20:21:21,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:21,854 INFO L225 Difference]: With dead ends: 3192 [2022-11-02 20:21:21,854 INFO L226 Difference]: Without dead ends: 3192 [2022-11-02 20:21:21,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:21:21,856 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 74 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:21,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 97 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:21:21,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2022-11-02 20:21:21,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 2854. [2022-11-02 20:21:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2854 states, 2824 states have (on average 2.9854815864022664) internal successors, (8431), 2853 states have internal predecessors, (8431), 0 states have call successors, (0), 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 20:21:22,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 8431 transitions. [2022-11-02 20:21:22,008 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 8431 transitions. Word has length 10 [2022-11-02 20:21:22,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:22,008 INFO L495 AbstractCegarLoop]: Abstraction has 2854 states and 8431 transitions. [2022-11-02 20:21:22,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 20:21:22,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 8431 transitions. [2022-11-02 20:21:22,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 20:21:22,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:22,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:22,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:21:22,010 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-11-02 20:21:22,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:22,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2036953816, now seen corresponding path program 1 times [2022-11-02 20:21:22,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:22,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198290711] [2022-11-02 20:21:22,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:22,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:22,212 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 20:21:22,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:22,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198290711] [2022-11-02 20:21:22,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198290711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:22,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:22,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:21:22,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138304377] [2022-11-02 20:21:22,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:22,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:21:22,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:22,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:21:22,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:21:22,224 INFO L87 Difference]: Start difference. First operand 2854 states and 8431 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 20:21:22,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:22,718 INFO L93 Difference]: Finished difference Result 3052 states and 8676 transitions. [2022-11-02 20:21:22,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:21:22,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-02 20:21:22,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:22,756 INFO L225 Difference]: With dead ends: 3052 [2022-11-02 20:21:22,765 INFO L226 Difference]: Without dead ends: 3052 [2022-11-02 20:21:22,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:21:22,766 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 69 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:22,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 97 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:21:22,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3052 states. [2022-11-02 20:21:22,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3052 to 2854. [2022-11-02 20:21:22,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2854 states, 2824 states have (on average 2.9153682719546743) internal successors, (8233), 2853 states have internal predecessors, (8233), 0 states have call successors, (0), 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 20:21:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 8233 transitions. [2022-11-02 20:21:22,868 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 8233 transitions. Word has length 10 [2022-11-02 20:21:22,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:22,869 INFO L495 AbstractCegarLoop]: Abstraction has 2854 states and 8233 transitions. [2022-11-02 20:21:22,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 20:21:22,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 8233 transitions. [2022-11-02 20:21:22,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:21:22,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:22,871 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-02 20:21:22,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:21:22,871 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-11-02 20:21:22,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:22,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1959748769, now seen corresponding path program 1 times [2022-11-02 20:21:22,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:22,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140037924] [2022-11-02 20:21:22,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:22,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:21:22,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:21:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:21:22,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:21:22,900 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:21:22,900 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-11-02 20:21:22,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2022-11-02 20:21:22,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2022-11-02 20:21:22,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2022-11-02 20:21:22,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2022-11-02 20:21:22,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2022-11-02 20:21:22,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2022-11-02 20:21:22,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2022-11-02 20:21:22,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2022-11-02 20:21:22,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2022-11-02 20:21:22,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2022-11-02 20:21:22,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2022-11-02 20:21:22,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2022-11-02 20:21:22,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2022-11-02 20:21:22,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2022-11-02 20:21:22,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2022-11-02 20:21:22,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2022-11-02 20:21:22,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2022-11-02 20:21:22,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2022-11-02 20:21:22,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2022-11-02 20:21:22,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2022-11-02 20:21:22,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 31 remaining) [2022-11-02 20:21:22,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 31 remaining) [2022-11-02 20:21:22,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2022-11-02 20:21:22,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2022-11-02 20:21:22,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2022-11-02 20:21:22,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2022-11-02 20:21:22,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2022-11-02 20:21:22,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2022-11-02 20:21:22,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2022-11-02 20:21:22,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2022-11-02 20:21:22,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:21:22,916 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:22,917 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:21:22,917 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-02 20:21:22,999 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:21:23,003 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:21:23,004 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 266 transitions, 553 flow [2022-11-02 20:21:23,004 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 266 transitions, 553 flow [2022-11-02 20:21:23,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 266 transitions, 553 flow [2022-11-02 20:21:23,081 INFO L130 PetriNetUnfolder]: 28/303 cut-off events. [2022-11-02 20:21:23,081 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-02 20:21:23,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 303 events. 28/303 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1041 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 244. Up to 8 conditions per place. [2022-11-02 20:21:23,115 INFO L118 LiptonReduction]: Number of co-enabled transitions 42504 [2022-11-02 20:21:38,247 INFO L133 LiptonReduction]: Checked pairs total: 109778 [2022-11-02 20:21:38,248 INFO L135 LiptonReduction]: Total number of compositions: 256 [2022-11-02 20:21:38,252 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 100 transitions, 221 flow [2022-11-02 20:21:44,691 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 126252 states, 123461 states have (on average 4.226743668040919) internal successors, (521838), 126251 states have internal predecessors, (521838), 0 states have call successors, (0), 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 20:21:44,694 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:21:44,695 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;@533e4aec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:21:44,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2022-11-02 20:21:45,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 126252 states, 123461 states have (on average 4.226743668040919) internal successors, (521838), 126251 states have internal predecessors, (521838), 0 states have call successors, (0), 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 20:21:45,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:21:45,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:45,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:21:45,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-02 20:21:45,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1515010736, now seen corresponding path program 1 times [2022-11-02 20:21:45,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:45,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38312868] [2022-11-02 20:21:45,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:45,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:45,137 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 20:21:45,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:45,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38312868] [2022-11-02 20:21:45,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38312868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:45,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:45,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:21:45,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601705702] [2022-11-02 20:21:45,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:45,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:21:45,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:45,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:21:45,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:21:45,669 INFO L87 Difference]: Start difference. First operand has 126252 states, 123461 states have (on average 4.226743668040919) internal successors, (521838), 126251 states have internal predecessors, (521838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:47,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:47,259 INFO L93 Difference]: Finished difference Result 65691 states and 258757 transitions. [2022-11-02 20:21:47,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:21:47,260 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 20:21:47,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:47,915 INFO L225 Difference]: With dead ends: 65691 [2022-11-02 20:21:47,915 INFO L226 Difference]: Without dead ends: 65691 [2022-11-02 20:21:47,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:21:47,917 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:47,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:21:48,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65691 states. [2022-11-02 20:21:51,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65691 to 65691. [2022-11-02 20:21:51,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65691 states, 65348 states have (on average 3.9596774193548385) internal successors, (258757), 65690 states have internal predecessors, (258757), 0 states have call successors, (0), 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 20:21:52,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65691 states to 65691 states and 258757 transitions. [2022-11-02 20:21:52,711 INFO L78 Accepts]: Start accepts. Automaton has 65691 states and 258757 transitions. Word has length 5 [2022-11-02 20:21:52,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:52,712 INFO L495 AbstractCegarLoop]: Abstraction has 65691 states and 258757 transitions. [2022-11-02 20:21:52,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:21:52,712 INFO L276 IsEmpty]: Start isEmpty. Operand 65691 states and 258757 transitions. [2022-11-02 20:21:52,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:21:52,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:52,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:21:52,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:21:52,720 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-02 20:21:52,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:52,721 INFO L85 PathProgramCache]: Analyzing trace with hash -279306069, now seen corresponding path program 1 times [2022-11-02 20:21:52,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:52,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175182287] [2022-11-02 20:21:52,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:52,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:52,774 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 20:21:52,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:52,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175182287] [2022-11-02 20:21:52,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175182287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:52,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:52,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:21:52,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98575201] [2022-11-02 20:21:52,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:52,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:21:52,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:52,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:21:52,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:52,777 INFO L87 Difference]: Start difference. First operand 65691 states and 258757 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 20:21:53,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:21:53,517 INFO L93 Difference]: Finished difference Result 66078 states and 260158 transitions. [2022-11-02 20:21:53,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:21:53,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 20:21:53,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:21:54,972 INFO L225 Difference]: With dead ends: 66078 [2022-11-02 20:21:54,973 INFO L226 Difference]: Without dead ends: 66078 [2022-11-02 20:21:54,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:21:54,975 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:21:54,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 24 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:21:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66078 states. [2022-11-02 20:21:57,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66078 to 66073. [2022-11-02 20:21:57,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66073 states, 65730 states have (on average 3.9576905522592423) internal successors, (260139), 66072 states have internal predecessors, (260139), 0 states have call successors, (0), 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 20:21:58,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66073 states to 66073 states and 260139 transitions. [2022-11-02 20:21:58,627 INFO L78 Accepts]: Start accepts. Automaton has 66073 states and 260139 transitions. Word has length 6 [2022-11-02 20:21:58,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:21:58,627 INFO L495 AbstractCegarLoop]: Abstraction has 66073 states and 260139 transitions. [2022-11-02 20:21:58,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 20:21:58,627 INFO L276 IsEmpty]: Start isEmpty. Operand 66073 states and 260139 transitions. [2022-11-02 20:21:58,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 20:21:58,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:21:58,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:21:58,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:21:58,628 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-02 20:21:58,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:21:58,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1948797755, now seen corresponding path program 1 times [2022-11-02 20:21:58,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:21:58,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168485204] [2022-11-02 20:21:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:21:58,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:21:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:21:58,826 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 20:21:58,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:21:58,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168485204] [2022-11-02 20:21:58,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168485204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:21:58,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:21:58,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:21:58,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238992949] [2022-11-02 20:21:58,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:21:58,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:21:58,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:21:58,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:21:58,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:21:58,830 INFO L87 Difference]: Start difference. First operand 66073 states and 260139 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 20:22:00,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:00,011 INFO L93 Difference]: Finished difference Result 71147 states and 279462 transitions. [2022-11-02 20:22:00,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:22:00,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-02 20:22:00,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:01,541 INFO L225 Difference]: With dead ends: 71147 [2022-11-02 20:22:01,541 INFO L226 Difference]: Without dead ends: 71147 [2022-11-02 20:22:01,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:22:01,542 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 106 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:01,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 91 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:22:01,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71147 states. [2022-11-02 20:22:03,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71147 to 70316. [2022-11-02 20:22:03,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70316 states, 69973 states have (on average 3.9499949980706845) internal successors, (276393), 70315 states have internal predecessors, (276393), 0 states have call successors, (0), 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 20:22:05,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70316 states to 70316 states and 276393 transitions. [2022-11-02 20:22:05,211 INFO L78 Accepts]: Start accepts. Automaton has 70316 states and 276393 transitions. Word has length 10 [2022-11-02 20:22:05,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:05,212 INFO L495 AbstractCegarLoop]: Abstraction has 70316 states and 276393 transitions. [2022-11-02 20:22:05,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 20:22:05,213 INFO L276 IsEmpty]: Start isEmpty. Operand 70316 states and 276393 transitions. [2022-11-02 20:22:05,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-02 20:22:05,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:05,216 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:05,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:22:05,217 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-02 20:22:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:05,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1159023783, now seen corresponding path program 1 times [2022-11-02 20:22:05,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:05,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789540979] [2022-11-02 20:22:05,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:05,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:05,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:05,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789540979] [2022-11-02 20:22:05,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789540979] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:22:05,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109650805] [2022-11-02 20:22:05,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:05,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:22:05,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:22:05,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:22:05,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:22:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:05,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-02 20:22:05,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:22:05,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 20:22:06,120 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 20:22:06,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-02 20:22:06,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 20:22:06,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-02 20:22:06,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-02 20:22:06,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:06,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:22:06,431 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_136 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_136) |c_thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) |c_thr1Thread1of3ForFork0_push_~#newTop~0#1.offset|) 2147483648)) is different from false [2022-11-02 20:22:06,496 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:22:06,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 58 [2022-11-02 20:22:06,519 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:22:06,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-02 20:22:06,591 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 44 [2022-11-02 20:22:06,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-02 20:22:06,620 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-02 20:22:06,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-11-02 20:22:06,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2022-11-02 20:22:06,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-02 20:22:06,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109650805] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:22:06,895 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:22:06,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 16 [2022-11-02 20:22:06,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418910143] [2022-11-02 20:22:06,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:22:06,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:22:06,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:06,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:22:06,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=226, Unknown=1, NotChecked=30, Total=306 [2022-11-02 20:22:06,898 INFO L87 Difference]: Start difference. First operand 70316 states and 276393 transitions. Second operand has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 0 states have call successors, (0), 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 20:22:15,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:15,618 INFO L93 Difference]: Finished difference Result 144099 states and 549446 transitions. [2022-11-02 20:22:15,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-02 20:22:15,619 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 0 states have call successors, (0), 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 13 [2022-11-02 20:22:15,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:17,275 INFO L225 Difference]: With dead ends: 144099 [2022-11-02 20:22:17,275 INFO L226 Difference]: Without dead ends: 144099 [2022-11-02 20:22:17,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=277, Invalid=1055, Unknown=4, NotChecked=70, Total=1406 [2022-11-02 20:22:17,276 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 698 mSDsluCounter, 2888 mSDsCounter, 0 mSdLazyCounter, 4796 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 6949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 4796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2074 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:17,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 989 Invalid, 6949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 4796 Invalid, 0 Unknown, 2074 Unchecked, 5.7s Time] [2022-11-02 20:22:17,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144099 states. [2022-11-02 20:22:21,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144099 to 95654. [2022-11-02 20:22:21,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95654 states, 95311 states have (on average 3.916746230760353) internal successors, (373309), 95653 states have internal predecessors, (373309), 0 states have call successors, (0), 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 20:22:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95654 states to 95654 states and 373309 transitions. [2022-11-02 20:22:21,958 INFO L78 Accepts]: Start accepts. Automaton has 95654 states and 373309 transitions. Word has length 13 [2022-11-02 20:22:21,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:21,958 INFO L495 AbstractCegarLoop]: Abstraction has 95654 states and 373309 transitions. [2022-11-02 20:22:21,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 17 states have internal predecessors, (39), 0 states have call successors, (0), 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 20:22:21,959 INFO L276 IsEmpty]: Start isEmpty. Operand 95654 states and 373309 transitions. [2022-11-02 20:22:21,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 20:22:21,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:21,961 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:22,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:22:22,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a29f09a0-4cd3-4d5a-ae08-1721f2fef4c6/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-02 20:22:22,178 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-02 20:22:22,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:22,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2147341360, now seen corresponding path program 1 times [2022-11-02 20:22:22,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:22,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928503310] [2022-11-02 20:22:22,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:22,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:22,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:22:22,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:22,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928503310] [2022-11-02 20:22:22,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928503310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:22,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:22,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:22:22,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38388751] [2022-11-02 20:22:22,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:22,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:22:22,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:22,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:22:22,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:22:22,287 INFO L87 Difference]: Start difference. First operand 95654 states and 373309 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:24,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:24,852 INFO L93 Difference]: Finished difference Result 113364 states and 433091 transitions. [2022-11-02 20:22:24,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:22:24,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-02 20:22:24,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:25,568 INFO L225 Difference]: With dead ends: 113364 [2022-11-02 20:22:25,568 INFO L226 Difference]: Without dead ends: 113364 [2022-11-02 20:22:25,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:22:25,569 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 89 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:25,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 36 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:22:25,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113364 states. [2022-11-02 20:22:29,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113364 to 107314. [2022-11-02 20:22:29,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107314 states, 106971 states have (on average 3.8836694057267858) internal successors, (415440), 107313 states have internal predecessors, (415440), 0 states have call successors, (0), 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 20:22:31,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107314 states to 107314 states and 415440 transitions. [2022-11-02 20:22:31,375 INFO L78 Accepts]: Start accepts. Automaton has 107314 states and 415440 transitions. Word has length 14 [2022-11-02 20:22:31,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:31,376 INFO L495 AbstractCegarLoop]: Abstraction has 107314 states and 415440 transitions. [2022-11-02 20:22:31,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:31,376 INFO L276 IsEmpty]: Start isEmpty. Operand 107314 states and 415440 transitions. [2022-11-02 20:22:31,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 20:22:31,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:31,378 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:31,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:22:31,379 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-02 20:22:31,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:31,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2147341361, now seen corresponding path program 1 times [2022-11-02 20:22:31,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:31,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719068656] [2022-11-02 20:22:31,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:31,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:31,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:22:31,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:31,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719068656] [2022-11-02 20:22:31,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719068656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:31,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:31,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:22:31,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264165754] [2022-11-02 20:22:31,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:31,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:22:31,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:31,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:22:31,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:22:31,579 INFO L87 Difference]: Start difference. First operand 107314 states and 415440 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:32,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:32,746 INFO L93 Difference]: Finished difference Result 67546 states and 267632 transitions. [2022-11-02 20:22:32,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:22:32,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-02 20:22:32,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:33,253 INFO L225 Difference]: With dead ends: 67546 [2022-11-02 20:22:33,253 INFO L226 Difference]: Without dead ends: 67546 [2022-11-02 20:22:33,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:22:33,254 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 77 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:33,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 42 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:22:33,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67546 states. [2022-11-02 20:22:35,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67546 to 67107. [2022-11-02 20:22:35,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67107 states, 66982 states have (on average 3.9722612045027024) internal successors, (266070), 67106 states have internal predecessors, (266070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)