./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro --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 d8f535cb798ce58a79ec2e9a728d4e5d884025e215c7cfd9880fc53267dd5a20 --- 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-8393723 [2022-11-18 19:53:27,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:53:27,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:53:27,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:53:27,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:53:27,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:53:27,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:53:27,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:53:27,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:53:27,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:53:27,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:53:27,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:53:27,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:53:27,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:53:27,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:53:27,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:53:27,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:53:27,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:53:27,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:53:27,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:53:27,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:53:27,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:53:27,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:53:27,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:53:27,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:53:27,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:53:27,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:53:27,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:53:27,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:53:27,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:53:27,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:53:27,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:53:27,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:53:27,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:53:27,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:53:27,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:53:27,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:53:27,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:53:27,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:53:27,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:53:27,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:53:27,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:53:27,728 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:53:27,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:53:27,729 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:53:27,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:53:27,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:53:27,731 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:53:27,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:53:27,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:53:27,732 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:53:27,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:53:27,733 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:53:27,734 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:53:27,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:53:27,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:53:27,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:53:27,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:53:27,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:53:27,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:53:27,735 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:53:27,735 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:53:27,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:53:27,736 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:53:27,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:53:27,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:53:27,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:53:27,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:53:27,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:53:27,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:53:27,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:53:27,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:53:27,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:53:27,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:53:27,738 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:53:27,738 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:53:27,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:53:27,739 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_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8f535cb798ce58a79ec2e9a728d4e5d884025e215c7cfd9880fc53267dd5a20 [2022-11-18 19:53:28,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:53:28,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:53:28,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:53:28,049 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:53:28,051 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:53:28,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i [2022-11-18 19:53:28,114 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/data/6695ca018/f390ddfefef846f8a379e0f815e1eac2/FLAG2a6e703eb [2022-11-18 19:53:28,648 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:53:28,649 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i [2022-11-18 19:53:28,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/data/6695ca018/f390ddfefef846f8a379e0f815e1eac2/FLAG2a6e703eb [2022-11-18 19:53:28,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/data/6695ca018/f390ddfefef846f8a379e0f815e1eac2 [2022-11-18 19:53:28,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:53:28,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:53:28,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:53:28,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:53:28,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:53:28,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:53:28" (1/1) ... [2022-11-18 19:53:28,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e7ac63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:28, skipping insertion in model container [2022-11-18 19:53:28,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:53:28" (1/1) ... [2022-11-18 19:53:28,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:53:29,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:53:29,282 WARN L234 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_4ec92198-eb7d-43af-a906-d4d6a3637cf0/sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-18 19:53:29,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:53:29,605 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:53:29,616 WARN L234 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_4ec92198-eb7d-43af-a906-d4d6a3637cf0/sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-18 19:53:29,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:53:29,684 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:53:29,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29 WrapperNode [2022-11-18 19:53:29,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:53:29,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:53:29,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:53:29,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:53:29,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29" (1/1) ... [2022-11-18 19:53:29,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29" (1/1) ... [2022-11-18 19:53:29,730 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-11-18 19:53:29,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:53:29,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:53:29,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:53:29,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:53:29,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29" (1/1) ... [2022-11-18 19:53:29,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29" (1/1) ... [2022-11-18 19:53:29,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29" (1/1) ... [2022-11-18 19:53:29,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29" (1/1) ... [2022-11-18 19:53:29,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29" (1/1) ... [2022-11-18 19:53:29,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29" (1/1) ... [2022-11-18 19:53:29,768 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29" (1/1) ... [2022-11-18 19:53:29,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29" (1/1) ... [2022-11-18 19:53:29,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:53:29,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:53:29,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:53:29,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:53:29,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29" (1/1) ... [2022-11-18 19:53:29,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:53:29,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:29,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:29,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:53:29,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:53:29,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:53:29,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:53:29,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:53:29,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:53:29,880 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 19:53:29,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 19:53:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 19:53:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 19:53:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-18 19:53:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-18 19:53:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-18 19:53:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-18 19:53:29,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:53:29,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:53:29,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:53:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:53:29,884 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:53:30,033 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:53:30,035 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:53:30,515 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:53:30,737 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:53:30,738 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:53:30,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:30 BoogieIcfgContainer [2022-11-18 19:53:30,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:53:30,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:53:30,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:53:30,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:53:30,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:53:28" (1/3) ... [2022-11-18 19:53:30,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206b644e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:53:30, skipping insertion in model container [2022-11-18 19:53:30,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:29" (2/3) ... [2022-11-18 19:53:30,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206b644e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:53:30, skipping insertion in model container [2022-11-18 19:53:30,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:30" (3/3) ... [2022-11-18 19:53:30,756 INFO L112 eAbstractionObserver]: Analyzing ICFG mix027_power.oepc_pso.oepc_rmo.oepc.i [2022-11-18 19:53:30,765 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:53:30,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:53:30,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 19:53:30,777 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:53:30,883 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:53:30,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 143 transitions, 306 flow [2022-11-18 19:53:31,036 INFO L130 PetriNetUnfolder]: 2/139 cut-off events. [2022-11-18 19:53:31,037 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:53:31,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 2/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-11-18 19:53:31,043 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 143 transitions, 306 flow [2022-11-18 19:53:31,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 139 transitions, 290 flow [2022-11-18 19:53:31,065 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:53:31,074 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5582647b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:53:31,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-18 19:53:31,097 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-11-18 19:53:31,098 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:53:31,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:53:31,099 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:31,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 19:53:31,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:31,107 INFO L85 PathProgramCache]: Analyzing trace with hash -45404639, now seen corresponding path program 1 times [2022-11-18 19:53:31,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:31,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422073847] [2022-11-18 19:53:31,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:31,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:31,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:31,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422073847] [2022-11-18 19:53:31,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422073847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:31,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:31,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:53:31,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396512600] [2022-11-18 19:53:31,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:31,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:53:31,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:31,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:53:31,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:53:31,605 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2022-11-18 19:53:31,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 139 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:31,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:53:31,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2022-11-18 19:53:31,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:53:34,092 INFO L130 PetriNetUnfolder]: 4102/9577 cut-off events. [2022-11-18 19:53:34,092 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-11-18 19:53:34,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15602 conditions, 9577 events. 4102/9577 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 87895 event pairs, 2696 based on Foata normal form. 288/7318 useless extension candidates. Maximal degree in co-relation 15545. Up to 5438 conditions per place. [2022-11-18 19:53:34,222 INFO L137 encePairwiseOnDemand]: 128/143 looper letters, 35 selfloop transitions, 5 changer transitions 0/151 dead transitions. [2022-11-18 19:53:34,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 151 transitions, 403 flow [2022-11-18 19:53:34,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:53:34,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:53:34,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2022-11-18 19:53:34,245 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9254079254079254 [2022-11-18 19:53:34,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2022-11-18 19:53:34,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2022-11-18 19:53:34,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:53:34,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2022-11-18 19:53:34,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:34,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:34,269 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:34,271 INFO L175 Difference]: Start difference. First operand has 150 places, 139 transitions, 290 flow. Second operand 3 states and 397 transitions. [2022-11-18 19:53:34,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 151 transitions, 403 flow [2022-11-18 19:53:34,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 151 transitions, 396 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:53:34,286 INFO L231 Difference]: Finished difference. Result has 148 places, 140 transitions, 327 flow [2022-11-18 19:53:34,289 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=148, PETRI_TRANSITIONS=140} [2022-11-18 19:53:34,294 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, -2 predicate places. [2022-11-18 19:53:34,294 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 140 transitions, 327 flow [2022-11-18 19:53:34,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:34,296 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:53:34,296 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:34,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:53:34,297 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 19:53:34,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:34,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2028867875, now seen corresponding path program 1 times [2022-11-18 19:53:34,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:34,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116968668] [2022-11-18 19:53:34,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:34,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:34,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:34,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:34,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116968668] [2022-11-18 19:53:34,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116968668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:34,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:34,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:53:34,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925105280] [2022-11-18 19:53:34,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:34,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:53:34,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:34,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:53:34,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:53:34,501 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2022-11-18 19:53:34,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 140 transitions, 327 flow. Second operand has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:34,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:53:34,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2022-11-18 19:53:34,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:53:35,835 INFO L130 PetriNetUnfolder]: 2592/5270 cut-off events. [2022-11-18 19:53:35,836 INFO L131 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2022-11-18 19:53:35,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11225 conditions, 5270 events. 2592/5270 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 44211 event pairs, 417 based on Foata normal form. 0/4066 useless extension candidates. Maximal degree in co-relation 11169. Up to 2078 conditions per place. [2022-11-18 19:53:35,906 INFO L137 encePairwiseOnDemand]: 130/143 looper letters, 45 selfloop transitions, 13 changer transitions 0/169 dead transitions. [2022-11-18 19:53:35,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 169 transitions, 527 flow [2022-11-18 19:53:35,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:53:35,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:53:35,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 522 transitions. [2022-11-18 19:53:35,909 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9125874125874126 [2022-11-18 19:53:35,909 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 522 transitions. [2022-11-18 19:53:35,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 522 transitions. [2022-11-18 19:53:35,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:53:35,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 522 transitions. [2022-11-18 19:53:35,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:35,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:35,926 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:35,926 INFO L175 Difference]: Start difference. First operand has 148 places, 140 transitions, 327 flow. Second operand 4 states and 522 transitions. [2022-11-18 19:53:35,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 169 transitions, 527 flow [2022-11-18 19:53:35,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 169 transitions, 522 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:53:35,935 INFO L231 Difference]: Finished difference. Result has 152 places, 148 transitions, 425 flow [2022-11-18 19:53:35,936 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=425, PETRI_PLACES=152, PETRI_TRANSITIONS=148} [2022-11-18 19:53:35,937 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, 2 predicate places. [2022-11-18 19:53:35,938 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 148 transitions, 425 flow [2022-11-18 19:53:35,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:35,939 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:53:35,939 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:35,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:53:35,939 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 19:53:35,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:35,942 INFO L85 PathProgramCache]: Analyzing trace with hash 729171868, now seen corresponding path program 1 times [2022-11-18 19:53:35,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:35,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810537607] [2022-11-18 19:53:35,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:35,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:36,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:36,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:36,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810537607] [2022-11-18 19:53:36,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810537607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:36,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:36,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:53:36,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179365995] [2022-11-18 19:53:36,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:36,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:53:36,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:36,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:53:36,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:53:36,231 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2022-11-18 19:53:36,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 148 transitions, 425 flow. Second operand has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:36,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:53:36,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2022-11-18 19:53:36,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:53:36,999 INFO L130 PetriNetUnfolder]: 1367/3138 cut-off events. [2022-11-18 19:53:37,000 INFO L131 PetriNetUnfolder]: For 1472/1472 co-relation queries the response was YES. [2022-11-18 19:53:37,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6915 conditions, 3138 events. 1367/3138 cut-off events. For 1472/1472 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 24419 event pairs, 279 based on Foata normal form. 379/3201 useless extension candidates. Maximal degree in co-relation 6856. Up to 1599 conditions per place. [2022-11-18 19:53:37,122 INFO L137 encePairwiseOnDemand]: 134/143 looper letters, 35 selfloop transitions, 5 changer transitions 0/151 dead transitions. [2022-11-18 19:53:37,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 151 transitions, 477 flow [2022-11-18 19:53:37,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:53:37,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:53:37,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 500 transitions. [2022-11-18 19:53:37,133 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8741258741258742 [2022-11-18 19:53:37,134 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 500 transitions. [2022-11-18 19:53:37,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 500 transitions. [2022-11-18 19:53:37,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:53:37,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 500 transitions. [2022-11-18 19:53:37,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:37,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:37,140 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:37,140 INFO L175 Difference]: Start difference. First operand has 152 places, 148 transitions, 425 flow. Second operand 4 states and 500 transitions. [2022-11-18 19:53:37,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 151 transitions, 477 flow [2022-11-18 19:53:37,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 151 transitions, 454 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-18 19:53:37,172 INFO L231 Difference]: Finished difference. Result has 148 places, 140 transitions, 356 flow [2022-11-18 19:53:37,172 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=356, PETRI_PLACES=148, PETRI_TRANSITIONS=140} [2022-11-18 19:53:37,175 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, -2 predicate places. [2022-11-18 19:53:37,176 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 140 transitions, 356 flow [2022-11-18 19:53:37,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:37,176 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:53:37,177 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:37,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:53:37,178 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 19:53:37,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:37,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1444980975, now seen corresponding path program 1 times [2022-11-18 19:53:37,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:37,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053009112] [2022-11-18 19:53:37,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:37,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:37,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:37,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:37,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053009112] [2022-11-18 19:53:37,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053009112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:37,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:37,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:53:37,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147018537] [2022-11-18 19:53:37,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:37,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:53:37,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:37,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:53:37,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:53:37,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2022-11-18 19:53:37,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 140 transitions, 356 flow. Second operand has 5 states, 5 states have (on average 117.2) internal successors, (586), 5 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:37,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:53:37,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2022-11-18 19:53:37,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:53:38,224 INFO L130 PetriNetUnfolder]: 1184/3311 cut-off events. [2022-11-18 19:53:38,224 INFO L131 PetriNetUnfolder]: For 1146/1146 co-relation queries the response was YES. [2022-11-18 19:53:38,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6183 conditions, 3311 events. 1184/3311 cut-off events. For 1146/1146 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 26568 event pairs, 375 based on Foata normal form. 0/3125 useless extension candidates. Maximal degree in co-relation 6125. Up to 683 conditions per place. [2022-11-18 19:53:38,253 INFO L137 encePairwiseOnDemand]: 134/143 looper letters, 46 selfloop transitions, 13 changer transitions 4/174 dead transitions. [2022-11-18 19:53:38,253 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 174 transitions, 578 flow [2022-11-18 19:53:38,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:53:38,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 19:53:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 642 transitions. [2022-11-18 19:53:38,256 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8979020979020979 [2022-11-18 19:53:38,256 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 642 transitions. [2022-11-18 19:53:38,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 642 transitions. [2022-11-18 19:53:38,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:53:38,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 642 transitions. [2022-11-18 19:53:38,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:38,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:38,262 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:38,262 INFO L175 Difference]: Start difference. First operand has 148 places, 140 transitions, 356 flow. Second operand 5 states and 642 transitions. [2022-11-18 19:53:38,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 174 transitions, 578 flow [2022-11-18 19:53:38,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 174 transitions, 572 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:53:38,266 INFO L231 Difference]: Finished difference. Result has 151 places, 140 transitions, 392 flow [2022-11-18 19:53:38,267 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=392, PETRI_PLACES=151, PETRI_TRANSITIONS=140} [2022-11-18 19:53:38,268 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, 1 predicate places. [2022-11-18 19:53:38,268 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 140 transitions, 392 flow [2022-11-18 19:53:38,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.2) internal successors, (586), 5 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:38,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:53:38,269 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:38,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:53:38,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 19:53:38,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:38,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2110738016, now seen corresponding path program 1 times [2022-11-18 19:53:38,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:38,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825338625] [2022-11-18 19:53:38,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:38,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:38,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:38,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825338625] [2022-11-18 19:53:38,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825338625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:38,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:38,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:53:38,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052803308] [2022-11-18 19:53:38,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:38,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:53:38,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:38,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:53:38,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:53:38,476 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2022-11-18 19:53:38,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 392 flow. Second operand has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:38,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:53:38,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2022-11-18 19:53:38,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:53:39,159 INFO L130 PetriNetUnfolder]: 1165/2786 cut-off events. [2022-11-18 19:53:39,159 INFO L131 PetriNetUnfolder]: For 1279/1279 co-relation queries the response was YES. [2022-11-18 19:53:39,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6203 conditions, 2786 events. 1165/2786 cut-off events. For 1279/1279 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 21220 event pairs, 246 based on Foata normal form. 12/2676 useless extension candidates. Maximal degree in co-relation 6144. Up to 683 conditions per place. [2022-11-18 19:53:39,175 INFO L137 encePairwiseOnDemand]: 134/143 looper letters, 0 selfloop transitions, 0 changer transitions 166/166 dead transitions. [2022-11-18 19:53:39,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 166 transitions, 542 flow [2022-11-18 19:53:39,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:53:39,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:53:39,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 749 transitions. [2022-11-18 19:53:39,178 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.872960372960373 [2022-11-18 19:53:39,179 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 749 transitions. [2022-11-18 19:53:39,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 749 transitions. [2022-11-18 19:53:39,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:53:39,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 749 transitions. [2022-11-18 19:53:39,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:39,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:39,185 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:39,185 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 392 flow. Second operand 6 states and 749 transitions. [2022-11-18 19:53:39,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 166 transitions, 542 flow [2022-11-18 19:53:39,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 166 transitions, 487 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-18 19:53:39,209 INFO L231 Difference]: Finished difference. Result has 146 places, 0 transitions, 0 flow [2022-11-18 19:53:39,209 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=146, PETRI_TRANSITIONS=0} [2022-11-18 19:53:39,210 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, -4 predicate places. [2022-11-18 19:53:39,211 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 0 transitions, 0 flow [2022-11-18 19:53:39,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:39,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-18 19:53:39,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-18 19:53:39,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-18 19:53:39,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-18 19:53:39,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-18 19:53:39,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-18 19:53:39,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-18 19:53:39,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-18 19:53:39,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-18 19:53:39,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-18 19:53:39,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-18 19:53:39,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-18 19:53:39,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-18 19:53:39,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-18 19:53:39,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-18 19:53:39,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-18 19:53:39,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-18 19:53:39,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-18 19:53:39,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-18 19:53:39,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-18 19:53:39,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:53:39,220 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 19:53:39,226 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:53:39,227 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:53:39,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:53:39 BasicIcfg [2022-11-18 19:53:39,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:53:39,233 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:53:39,233 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:53:39,233 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:53:39,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:30" (3/4) ... [2022-11-18 19:53:39,237 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:53:39,242 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-18 19:53:39,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-18 19:53:39,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-18 19:53:39,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-18 19:53:39,249 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-18 19:53:39,249 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 19:53:39,249 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 19:53:39,250 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:53:39,304 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:53:39,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:53:39,305 INFO L158 Benchmark]: Toolchain (without parser) took 10333.16ms. Allocated memory was 109.1MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 78.3MB in the beginning and 978.6MB in the end (delta: -900.3MB). Peak memory consumption was 184.7MB. Max. memory is 16.1GB. [2022-11-18 19:53:39,305 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 60.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:53:39,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 706.43ms. Allocated memory is still 109.1MB. Free memory was 78.3MB in the beginning and 70.8MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:53:39,306 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.62ms. Allocated memory is still 109.1MB. Free memory was 70.8MB in the beginning and 68.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:53:39,306 INFO L158 Benchmark]: Boogie Preprocessor took 42.21ms. Allocated memory is still 109.1MB. Free memory was 68.4MB in the beginning and 66.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:53:39,306 INFO L158 Benchmark]: RCFGBuilder took 969.35ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 66.3MB in the beginning and 92.5MB in the end (delta: -26.1MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-11-18 19:53:39,307 INFO L158 Benchmark]: TraceAbstraction took 8484.42ms. Allocated memory was 134.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 91.9MB in the beginning and 981.8MB in the end (delta: -889.9MB). Peak memory consumption was 410.0MB. Max. memory is 16.1GB. [2022-11-18 19:53:39,307 INFO L158 Benchmark]: Witness Printer took 71.39ms. Allocated memory is still 1.2GB. Free memory was 981.8MB in the beginning and 978.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:53:39,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 60.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 706.43ms. Allocated memory is still 109.1MB. Free memory was 78.3MB in the beginning and 70.8MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.62ms. Allocated memory is still 109.1MB. Free memory was 70.8MB in the beginning and 68.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.21ms. Allocated memory is still 109.1MB. Free memory was 68.4MB in the beginning and 66.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 969.35ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 66.3MB in the beginning and 92.5MB in the end (delta: -26.1MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8484.42ms. Allocated memory was 134.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 91.9MB in the beginning and 981.8MB in the end (delta: -889.9MB). Peak memory consumption was 410.0MB. Max. memory is 16.1GB. * Witness Printer took 71.39ms. Allocated memory is still 1.2GB. Free memory was 981.8MB in the beginning and 978.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 813]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 813]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 849]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 849]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 187 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 305 IncrementalHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 17 mSDtfsCounter, 305 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=425occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 345 NumberOfCodeBlocks, 345 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 780 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 19:53:39,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec92198-eb7d-43af-a906-d4d6a3637cf0/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE