./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/clever.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/clever.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8 --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 93a2fdd4bcf1d0c2ab8b4e49feeb28ec4b1782148939310f1cb0ffe97948195e --- 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-e04fb08 [2022-11-16 11:06:31,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:06:31,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:06:31,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:06:31,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:06:31,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:06:31,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:06:31,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:06:31,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:06:31,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:06:31,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:06:31,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:06:31,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:06:31,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:06:31,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:06:31,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:06:31,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:06:31,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:06:31,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:06:31,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:06:31,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:06:31,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:06:31,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:06:31,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:06:31,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:06:31,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:06:31,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:06:31,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:06:31,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:06:31,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:06:31,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:06:31,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:06:31,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:06:31,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:06:31,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:06:31,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:06:31,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:06:31,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:06:31,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:06:31,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:06:31,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:06:31,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:06:31,838 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:06:31,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:06:31,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:06:31,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:06:31,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:06:31,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:06:31,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:06:31,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:06:31,847 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:06:31,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:06:31,849 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:06:31,849 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:06:31,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:06:31,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:06:31,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:06:31,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:06:31,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:06:31,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:06:31,850 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:06:31,851 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:06:31,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:06:31,851 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:06:31,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:06:31,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:06:31,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:06:31,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:06:31,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:06:31,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:06:31,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:06:31,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:06:31,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:06:31,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:06:31,855 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:06:31,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:06:31,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:06:31,856 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_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93a2fdd4bcf1d0c2ab8b4e49feeb28ec4b1782148939310f1cb0ffe97948195e [2022-11-16 11:06:32,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:06:32,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:06:32,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:06:32,215 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:06:32,216 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:06:32,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/clever.wvr.c [2022-11-16 11:06:32,303 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/data/9eb4e457e/5e8af11fa7ca46c1a55178932cb15320/FLAGb14d3fa3d [2022-11-16 11:06:32,723 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:06:32,724 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/sv-benchmarks/c/weaver/clever.wvr.c [2022-11-16 11:06:32,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/data/9eb4e457e/5e8af11fa7ca46c1a55178932cb15320/FLAGb14d3fa3d [2022-11-16 11:06:33,121 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/data/9eb4e457e/5e8af11fa7ca46c1a55178932cb15320 [2022-11-16 11:06:33,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:06:33,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:06:33,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:06:33,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:06:33,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:06:33,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268789f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33, skipping insertion in model container [2022-11-16 11:06:33,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:06:33,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:06:33,407 WARN L229 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_48d770ad-a0ae-49f2-b9f7-41f971bed530/sv-benchmarks/c/weaver/clever.wvr.c[2133,2146] [2022-11-16 11:06:33,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:06:33,430 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:06:33,473 WARN L229 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_48d770ad-a0ae-49f2-b9f7-41f971bed530/sv-benchmarks/c/weaver/clever.wvr.c[2133,2146] [2022-11-16 11:06:33,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:06:33,493 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:06:33,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33 WrapperNode [2022-11-16 11:06:33,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:06:33,496 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:06:33,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:06:33,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:06:33,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,558 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 78 [2022-11-16 11:06:33,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:06:33,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:06:33,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:06:33,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:06:33,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,597 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:06:33,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:06:33,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:06:33,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:06:33,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33" (1/1) ... [2022-11-16 11:06:33,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:06:33,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:33,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:33,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:06:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:06:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:06:33,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:06:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:06:33,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:06:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:06:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:06:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:06:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:06:33,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:06:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:06:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:06:33,707 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:06:33,836 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:06:33,837 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:06:34,120 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:06:34,128 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:06:34,129 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 11:06:34,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:06:34 BoogieIcfgContainer [2022-11-16 11:06:34,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:06:34,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:06:34,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:06:34,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:06:34,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:06:33" (1/3) ... [2022-11-16 11:06:34,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5860d4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:06:34, skipping insertion in model container [2022-11-16 11:06:34,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:33" (2/3) ... [2022-11-16 11:06:34,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5860d4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:06:34, skipping insertion in model container [2022-11-16 11:06:34,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:06:34" (3/3) ... [2022-11-16 11:06:34,163 INFO L112 eAbstractionObserver]: Analyzing ICFG clever.wvr.c [2022-11-16 11:06:34,174 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:06:34,185 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:06:34,185 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 11:06:34,185 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:06:34,311 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:06:34,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 132 transitions, 280 flow [2022-11-16 11:06:34,491 INFO L130 PetriNetUnfolder]: 9/130 cut-off events. [2022-11-16 11:06:34,491 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:06:34,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 130 events. 9/130 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 136 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-11-16 11:06:34,499 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 132 transitions, 280 flow [2022-11-16 11:06:34,510 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 111 transitions, 231 flow [2022-11-16 11:06:34,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:06:34,550 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;@ac060c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:06:34,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-16 11:06:34,593 INFO L130 PetriNetUnfolder]: 4/75 cut-off events. [2022-11-16 11:06:34,603 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:06:34,603 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:34,604 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] [2022-11-16 11:06:34,605 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:06:34,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:34,613 INFO L85 PathProgramCache]: Analyzing trace with hash 382973249, now seen corresponding path program 1 times [2022-11-16 11:06:34,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:34,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442828436] [2022-11-16 11:06:34,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:34,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:34,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:34,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:34,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442828436] [2022-11-16 11:06:34,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442828436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:34,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:34,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:06:34,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368530718] [2022-11-16 11:06:34,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:34,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:06:34,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:34,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:06:34,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:06:34,999 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 132 [2022-11-16 11:06:35,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 111 transitions, 231 flow. Second operand has 2 states, 2 states have (on average 122.0) internal successors, (244), 2 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:35,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:35,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 132 [2022-11-16 11:06:35,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:35,048 INFO L130 PetriNetUnfolder]: 3/106 cut-off events. [2022-11-16 11:06:35,049 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:06:35,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 106 events. 3/106 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 125 event pairs, 0 based on Foata normal form. 8/103 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2022-11-16 11:06:35,051 INFO L137 encePairwiseOnDemand]: 127/132 looper letters, 3 selfloop transitions, 0 changer transitions 2/106 dead transitions. [2022-11-16 11:06:35,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 106 transitions, 227 flow [2022-11-16 11:06:35,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:06:35,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:06:35,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 250 transitions. [2022-11-16 11:06:35,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.946969696969697 [2022-11-16 11:06:35,067 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 250 transitions. [2022-11-16 11:06:35,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 250 transitions. [2022-11-16 11:06:35,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:35,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 250 transitions. [2022-11-16 11:06:35,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:35,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:35,080 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:35,082 INFO L175 Difference]: Start difference. First operand has 110 places, 111 transitions, 231 flow. Second operand 2 states and 250 transitions. [2022-11-16 11:06:35,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 106 transitions, 227 flow [2022-11-16 11:06:35,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 106 transitions, 222 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:06:35,090 INFO L231 Difference]: Finished difference. Result has 108 places, 104 transitions, 212 flow [2022-11-16 11:06:35,092 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=212, PETRI_PLACES=108, PETRI_TRANSITIONS=104} [2022-11-16 11:06:35,096 INFO L288 CegarLoopForPetriNet]: 110 programPoint places, -2 predicate places. [2022-11-16 11:06:35,096 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 104 transitions, 212 flow [2022-11-16 11:06:35,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 122.0) internal successors, (244), 2 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:35,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:35,097 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] [2022-11-16 11:06:35,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:06:35,098 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:06:35,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:35,099 INFO L85 PathProgramCache]: Analyzing trace with hash 382974210, now seen corresponding path program 1 times [2022-11-16 11:06:35,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:35,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667157243] [2022-11-16 11:06:35,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:35,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:35,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:35,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:35,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667157243] [2022-11-16 11:06:35,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667157243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:35,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:35,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:06:35,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531135927] [2022-11-16 11:06:35,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:35,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:06:35,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:35,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:06:35,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:06:35,481 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 132 [2022-11-16 11:06:35,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 104 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:35,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:35,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 132 [2022-11-16 11:06:35,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:35,725 INFO L130 PetriNetUnfolder]: 34/213 cut-off events. [2022-11-16 11:06:35,725 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-16 11:06:35,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 213 events. 34/213 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 770 event pairs, 5 based on Foata normal form. 1/176 useless extension candidates. Maximal degree in co-relation 300. Up to 28 conditions per place. [2022-11-16 11:06:35,731 INFO L137 encePairwiseOnDemand]: 122/132 looper letters, 21 selfloop transitions, 9 changer transitions 0/112 dead transitions. [2022-11-16 11:06:35,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 112 transitions, 294 flow [2022-11-16 11:06:35,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:06:35,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:06:35,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 847 transitions. [2022-11-16 11:06:35,742 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8020833333333334 [2022-11-16 11:06:35,744 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 847 transitions. [2022-11-16 11:06:35,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 847 transitions. [2022-11-16 11:06:35,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:35,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 847 transitions. [2022-11-16 11:06:35,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 105.875) internal successors, (847), 8 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:35,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 132.0) internal successors, (1188), 9 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:35,757 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 132.0) internal successors, (1188), 9 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:35,758 INFO L175 Difference]: Start difference. First operand has 108 places, 104 transitions, 212 flow. Second operand 8 states and 847 transitions. [2022-11-16 11:06:35,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 112 transitions, 294 flow [2022-11-16 11:06:35,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 112 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:06:35,764 INFO L231 Difference]: Finished difference. Result has 112 places, 103 transitions, 228 flow [2022-11-16 11:06:35,765 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=228, PETRI_PLACES=112, PETRI_TRANSITIONS=103} [2022-11-16 11:06:35,766 INFO L288 CegarLoopForPetriNet]: 110 programPoint places, 2 predicate places. [2022-11-16 11:06:35,766 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 103 transitions, 228 flow [2022-11-16 11:06:35,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:35,768 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:35,769 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] [2022-11-16 11:06:35,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:06:35,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:06:35,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:35,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1012701034, now seen corresponding path program 1 times [2022-11-16 11:06:35,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:35,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403220769] [2022-11-16 11:06:35,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:35,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:36,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:36,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:36,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403220769] [2022-11-16 11:06:36,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403220769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:36,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:36,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:06:36,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492971988] [2022-11-16 11:06:36,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:36,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:06:36,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:36,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:06:36,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:06:36,009 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 132 [2022-11-16 11:06:36,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 103 transitions, 228 flow. Second operand has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:36,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 132 [2022-11-16 11:06:36,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:36,124 INFO L130 PetriNetUnfolder]: 12/145 cut-off events. [2022-11-16 11:06:36,124 INFO L131 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2022-11-16 11:06:36,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 145 events. 12/145 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 367 event pairs, 5 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 202. Up to 15 conditions per place. [2022-11-16 11:06:36,129 INFO L137 encePairwiseOnDemand]: 126/132 looper letters, 12 selfloop transitions, 5 changer transitions 0/103 dead transitions. [2022-11-16 11:06:36,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 103 transitions, 264 flow [2022-11-16 11:06:36,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:06:36,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:06:36,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 548 transitions. [2022-11-16 11:06:36,132 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8303030303030303 [2022-11-16 11:06:36,132 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 548 transitions. [2022-11-16 11:06:36,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 548 transitions. [2022-11-16 11:06:36,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:36,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 548 transitions. [2022-11-16 11:06:36,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.6) internal successors, (548), 5 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,137 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,137 INFO L175 Difference]: Start difference. First operand has 112 places, 103 transitions, 228 flow. Second operand 5 states and 548 transitions. [2022-11-16 11:06:36,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 103 transitions, 264 flow [2022-11-16 11:06:36,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 103 transitions, 246 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-16 11:06:36,143 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 218 flow [2022-11-16 11:06:36,143 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=218, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2022-11-16 11:06:36,146 INFO L288 CegarLoopForPetriNet]: 110 programPoint places, -2 predicate places. [2022-11-16 11:06:36,146 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 218 flow [2022-11-16 11:06:36,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,147 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:36,147 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] [2022-11-16 11:06:36,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:06:36,148 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:06:36,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:36,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1781477049, now seen corresponding path program 1 times [2022-11-16 11:06:36,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:36,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469106108] [2022-11-16 11:06:36,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:36,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:36,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:36,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:36,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469106108] [2022-11-16 11:06:36,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469106108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:36,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:36,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:06:36,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56164923] [2022-11-16 11:06:36,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:36,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:06:36,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:36,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:06:36,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:06:36,258 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 132 [2022-11-16 11:06:36,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:36,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 132 [2022-11-16 11:06:36,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:36,341 INFO L130 PetriNetUnfolder]: 23/179 cut-off events. [2022-11-16 11:06:36,341 INFO L131 PetriNetUnfolder]: For 2/5 co-relation queries the response was YES. [2022-11-16 11:06:36,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 179 events. 23/179 cut-off events. For 2/5 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 552 event pairs, 9 based on Foata normal form. 1/164 useless extension candidates. Maximal degree in co-relation 283. Up to 34 conditions per place. [2022-11-16 11:06:36,343 INFO L137 encePairwiseOnDemand]: 124/132 looper letters, 21 selfloop transitions, 6 changer transitions 0/114 dead transitions. [2022-11-16 11:06:36,343 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 114 transitions, 303 flow [2022-11-16 11:06:36,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:06:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:06:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 574 transitions. [2022-11-16 11:06:36,346 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8696969696969697 [2022-11-16 11:06:36,346 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 574 transitions. [2022-11-16 11:06:36,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 574 transitions. [2022-11-16 11:06:36,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:36,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 574 transitions. [2022-11-16 11:06:36,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,351 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,351 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 218 flow. Second operand 5 states and 574 transitions. [2022-11-16 11:06:36,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 114 transitions, 303 flow [2022-11-16 11:06:36,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 114 transitions, 293 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:06:36,357 INFO L231 Difference]: Finished difference. Result has 112 places, 106 transitions, 252 flow [2022-11-16 11:06:36,358 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=252, PETRI_PLACES=112, PETRI_TRANSITIONS=106} [2022-11-16 11:06:36,359 INFO L288 CegarLoopForPetriNet]: 110 programPoint places, 2 predicate places. [2022-11-16 11:06:36,359 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 106 transitions, 252 flow [2022-11-16 11:06:36,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,360 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:36,360 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] [2022-11-16 11:06:36,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:06:36,361 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:06:36,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:36,361 INFO L85 PathProgramCache]: Analyzing trace with hash 762291240, now seen corresponding path program 1 times [2022-11-16 11:06:36,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:36,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433078072] [2022-11-16 11:06:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:36,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:36,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:36,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433078072] [2022-11-16 11:06:36,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433078072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:36,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:36,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:06:36,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141524538] [2022-11-16 11:06:36,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:36,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:06:36,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:36,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:06:36,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:06:36,589 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 132 [2022-11-16 11:06:36,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 106 transitions, 252 flow. Second operand has 6 states, 6 states have (on average 104.16666666666667) internal successors, (625), 6 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:36,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 132 [2022-11-16 11:06:36,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:36,755 INFO L130 PetriNetUnfolder]: 59/280 cut-off events. [2022-11-16 11:06:36,756 INFO L131 PetriNetUnfolder]: For 24/30 co-relation queries the response was YES. [2022-11-16 11:06:36,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 280 events. 59/280 cut-off events. For 24/30 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1184 event pairs, 10 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 445. Up to 52 conditions per place. [2022-11-16 11:06:36,759 INFO L137 encePairwiseOnDemand]: 122/132 looper letters, 21 selfloop transitions, 9 changer transitions 0/114 dead transitions. [2022-11-16 11:06:36,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 114 transitions, 331 flow [2022-11-16 11:06:36,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:06:36,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:06:36,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 847 transitions. [2022-11-16 11:06:36,763 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8020833333333334 [2022-11-16 11:06:36,763 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 847 transitions. [2022-11-16 11:06:36,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 847 transitions. [2022-11-16 11:06:36,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:36,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 847 transitions. [2022-11-16 11:06:36,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 105.875) internal successors, (847), 8 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 132.0) internal successors, (1188), 9 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,771 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 132.0) internal successors, (1188), 9 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,771 INFO L175 Difference]: Start difference. First operand has 112 places, 106 transitions, 252 flow. Second operand 8 states and 847 transitions. [2022-11-16 11:06:36,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 114 transitions, 331 flow [2022-11-16 11:06:36,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 114 transitions, 331 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:06:36,775 INFO L231 Difference]: Finished difference. Result has 118 places, 105 transitions, 268 flow [2022-11-16 11:06:36,776 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=268, PETRI_PLACES=118, PETRI_TRANSITIONS=105} [2022-11-16 11:06:36,777 INFO L288 CegarLoopForPetriNet]: 110 programPoint places, 8 predicate places. [2022-11-16 11:06:36,777 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 105 transitions, 268 flow [2022-11-16 11:06:36,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.16666666666667) internal successors, (625), 6 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:36,778 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] [2022-11-16 11:06:36,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:06:36,779 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:06:36,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:36,780 INFO L85 PathProgramCache]: Analyzing trace with hash -2138774971, now seen corresponding path program 1 times [2022-11-16 11:06:36,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:36,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937518359] [2022-11-16 11:06:36,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:36,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:36,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:36,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937518359] [2022-11-16 11:06:36,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937518359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:36,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:36,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:06:36,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11485191] [2022-11-16 11:06:36,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:36,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:06:36,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:36,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:06:36,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:06:36,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 132 [2022-11-16 11:06:36,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 105 transitions, 268 flow. Second operand has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:36,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 132 [2022-11-16 11:06:36,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:36,985 INFO L130 PetriNetUnfolder]: 18/155 cut-off events. [2022-11-16 11:06:36,986 INFO L131 PetriNetUnfolder]: For 25/26 co-relation queries the response was YES. [2022-11-16 11:06:36,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 155 events. 18/155 cut-off events. For 25/26 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 443 event pairs, 4 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 236. Up to 21 conditions per place. [2022-11-16 11:06:36,987 INFO L137 encePairwiseOnDemand]: 126/132 looper letters, 10 selfloop transitions, 5 changer transitions 4/105 dead transitions. [2022-11-16 11:06:36,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 105 transitions, 303 flow [2022-11-16 11:06:36,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:06:36,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:06:36,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 548 transitions. [2022-11-16 11:06:36,990 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8303030303030303 [2022-11-16 11:06:36,990 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 548 transitions. [2022-11-16 11:06:36,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 548 transitions. [2022-11-16 11:06:36,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:36,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 548 transitions. [2022-11-16 11:06:36,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.6) internal successors, (548), 5 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,994 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:36,994 INFO L175 Difference]: Start difference. First operand has 118 places, 105 transitions, 268 flow. Second operand 5 states and 548 transitions. [2022-11-16 11:06:36,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 105 transitions, 303 flow [2022-11-16 11:06:36,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 105 transitions, 285 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-16 11:06:36,999 INFO L231 Difference]: Finished difference. Result has 114 places, 101 transitions, 251 flow [2022-11-16 11:06:36,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=251, PETRI_PLACES=114, PETRI_TRANSITIONS=101} [2022-11-16 11:06:37,002 INFO L288 CegarLoopForPetriNet]: 110 programPoint places, 4 predicate places. [2022-11-16 11:06:37,003 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 101 transitions, 251 flow [2022-11-16 11:06:37,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:37,004 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:37,004 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 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] [2022-11-16 11:06:37,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:06:37,005 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:06:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:37,005 INFO L85 PathProgramCache]: Analyzing trace with hash -362300240, now seen corresponding path program 1 times [2022-11-16 11:06:37,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:37,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901166045] [2022-11-16 11:06:37,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:37,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:37,120 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:37,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:37,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901166045] [2022-11-16 11:06:37,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901166045] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:06:37,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021168166] [2022-11-16 11:06:37,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:37,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:06:37,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:37,134 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:06:37,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:06:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:37,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:06:37,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:37,370 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:37,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:06:37,451 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:37,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021168166] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:06:37,451 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:06:37,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-16 11:06:37,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936988658] [2022-11-16 11:06:37,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:06:37,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:06:37,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:37,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:06:37,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:06:37,455 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 132 [2022-11-16 11:06:37,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 101 transitions, 251 flow. Second operand has 12 states, 12 states have (on average 111.41666666666667) internal successors, (1337), 12 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:37,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:37,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 132 [2022-11-16 11:06:37,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:37,727 INFO L130 PetriNetUnfolder]: 53/331 cut-off events. [2022-11-16 11:06:37,727 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-11-16 11:06:37,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 331 events. 53/331 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1308 event pairs, 2 based on Foata normal form. 6/314 useless extension candidates. Maximal degree in co-relation 616. Up to 42 conditions per place. [2022-11-16 11:06:37,731 INFO L137 encePairwiseOnDemand]: 123/132 looper letters, 41 selfloop transitions, 23 changer transitions 0/147 dead transitions. [2022-11-16 11:06:37,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 147 transitions, 537 flow [2022-11-16 11:06:37,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:06:37,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:06:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2029 transitions. [2022-11-16 11:06:37,737 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8539562289562289 [2022-11-16 11:06:37,737 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2029 transitions. [2022-11-16 11:06:37,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2029 transitions. [2022-11-16 11:06:37,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:37,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2029 transitions. [2022-11-16 11:06:37,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 112.72222222222223) internal successors, (2029), 18 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:37,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 132.0) internal successors, (2508), 19 states have internal predecessors, (2508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:37,751 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 132.0) internal successors, (2508), 19 states have internal predecessors, (2508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:37,751 INFO L175 Difference]: Start difference. First operand has 114 places, 101 transitions, 251 flow. Second operand 18 states and 2029 transitions. [2022-11-16 11:06:37,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 147 transitions, 537 flow [2022-11-16 11:06:37,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 147 transitions, 527 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:06:37,758 INFO L231 Difference]: Finished difference. Result has 128 places, 116 transitions, 377 flow [2022-11-16 11:06:37,758 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=377, PETRI_PLACES=128, PETRI_TRANSITIONS=116} [2022-11-16 11:06:37,759 INFO L288 CegarLoopForPetriNet]: 110 programPoint places, 18 predicate places. [2022-11-16 11:06:37,759 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 116 transitions, 377 flow [2022-11-16 11:06:37,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 111.41666666666667) internal successors, (1337), 12 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:37,760 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:37,760 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2022-11-16 11:06:37,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:37,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:06:37,966 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:06:37,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:37,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1653594800, now seen corresponding path program 1 times [2022-11-16 11:06:37,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:37,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006407049] [2022-11-16 11:06:37,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:37,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:38,089 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:38,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:38,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006407049] [2022-11-16 11:06:38,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006407049] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:06:38,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364310863] [2022-11-16 11:06:38,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:38,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:06:38,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:38,092 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:06:38,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:06:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:38,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:06:38,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:38,234 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:38,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:06:38,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364310863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:38,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:06:38,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 11:06:38,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155387930] [2022-11-16 11:06:38,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:38,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:06:38,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:38,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:06:38,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:06:38,237 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 132 [2022-11-16 11:06:38,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 116 transitions, 377 flow. Second operand has 6 states, 6 states have (on average 111.33333333333333) internal successors, (668), 6 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:38,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:38,239 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 132 [2022-11-16 11:06:38,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:38,390 INFO L130 PetriNetUnfolder]: 49/329 cut-off events. [2022-11-16 11:06:38,390 INFO L131 PetriNetUnfolder]: For 166/166 co-relation queries the response was YES. [2022-11-16 11:06:38,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 329 events. 49/329 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1234 event pairs, 2 based on Foata normal form. 8/312 useless extension candidates. Maximal degree in co-relation 654. Up to 50 conditions per place. [2022-11-16 11:06:38,394 INFO L137 encePairwiseOnDemand]: 125/132 looper letters, 22 selfloop transitions, 17 changer transitions 0/122 dead transitions. [2022-11-16 11:06:38,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 122 transitions, 467 flow [2022-11-16 11:06:38,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:06:38,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:06:38,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 791 transitions. [2022-11-16 11:06:38,397 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8560606060606061 [2022-11-16 11:06:38,397 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 791 transitions. [2022-11-16 11:06:38,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 791 transitions. [2022-11-16 11:06:38,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:38,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 791 transitions. [2022-11-16 11:06:38,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:38,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 132.0) internal successors, (1056), 8 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:38,402 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 132.0) internal successors, (1056), 8 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:38,402 INFO L175 Difference]: Start difference. First operand has 128 places, 116 transitions, 377 flow. Second operand 7 states and 791 transitions. [2022-11-16 11:06:38,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 122 transitions, 467 flow [2022-11-16 11:06:38,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 122 transitions, 415 flow, removed 11 selfloop flow, removed 6 redundant places. [2022-11-16 11:06:38,407 INFO L231 Difference]: Finished difference. Result has 123 places, 113 transitions, 341 flow [2022-11-16 11:06:38,408 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=341, PETRI_PLACES=123, PETRI_TRANSITIONS=113} [2022-11-16 11:06:38,411 INFO L288 CegarLoopForPetriNet]: 110 programPoint places, 13 predicate places. [2022-11-16 11:06:38,411 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 113 transitions, 341 flow [2022-11-16 11:06:38,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.33333333333333) internal successors, (668), 6 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:38,412 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:06:38,412 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2022-11-16 11:06:38,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:06:38,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:06:38,618 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:06:38,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:38,619 INFO L85 PathProgramCache]: Analyzing trace with hash 273875577, now seen corresponding path program 2 times [2022-11-16 11:06:38,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:38,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99394083] [2022-11-16 11:06:38,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:38,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:38,866 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:38,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:38,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99394083] [2022-11-16 11:06:38,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99394083] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:06:38,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187656408] [2022-11-16 11:06:38,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:06:38,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:06:38,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:38,877 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:06:38,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:06:38,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:06:38,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:06:38,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:06:38,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:06:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 11:06:39,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:06:39,375 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 11:06:39,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187656408] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:06:39,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:06:39,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 15 [2022-11-16 11:06:39,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297524323] [2022-11-16 11:06:39,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:06:39,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:06:39,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:39,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:06:39,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:06:39,383 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 132 [2022-11-16 11:06:39,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 113 transitions, 341 flow. Second operand has 16 states, 16 states have (on average 105.3125) internal successors, (1685), 16 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:39,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:06:39,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 132 [2022-11-16 11:06:39,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:06:39,932 INFO L130 PetriNetUnfolder]: 113/566 cut-off events. [2022-11-16 11:06:39,932 INFO L131 PetriNetUnfolder]: For 217/217 co-relation queries the response was YES. [2022-11-16 11:06:39,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 566 events. 113/566 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2481 event pairs, 4 based on Foata normal form. 6/526 useless extension candidates. Maximal degree in co-relation 1125. Up to 46 conditions per place. [2022-11-16 11:06:39,935 INFO L137 encePairwiseOnDemand]: 121/132 looper letters, 0 selfloop transitions, 0 changer transitions 175/175 dead transitions. [2022-11-16 11:06:39,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 175 transitions, 728 flow [2022-11-16 11:06:39,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-16 11:06:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-11-16 11:06:39,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2446 transitions. [2022-11-16 11:06:39,942 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.80566534914361 [2022-11-16 11:06:39,942 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2446 transitions. [2022-11-16 11:06:39,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2446 transitions. [2022-11-16 11:06:39,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:06:39,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2446 transitions. [2022-11-16 11:06:39,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 106.34782608695652) internal successors, (2446), 23 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:39,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 132.0) internal successors, (3168), 24 states have internal predecessors, (3168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:39,958 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 132.0) internal successors, (3168), 24 states have internal predecessors, (3168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:39,958 INFO L175 Difference]: Start difference. First operand has 123 places, 113 transitions, 341 flow. Second operand 23 states and 2446 transitions. [2022-11-16 11:06:39,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 175 transitions, 728 flow [2022-11-16 11:06:39,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 175 transitions, 696 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-16 11:06:39,963 INFO L231 Difference]: Finished difference. Result has 136 places, 0 transitions, 0 flow [2022-11-16 11:06:39,963 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=0, PETRI_PLACES=136, PETRI_TRANSITIONS=0} [2022-11-16 11:06:39,964 INFO L288 CegarLoopForPetriNet]: 110 programPoint places, 26 predicate places. [2022-11-16 11:06:39,964 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 0 transitions, 0 flow [2022-11-16 11:06:39,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 105.3125) internal successors, (1685), 16 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:06:39,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-11-16 11:06:39,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-11-16 11:06:39,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-11-16 11:06:39,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-11-16 11:06:39,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-11-16 11:06:39,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-11-16 11:06:39,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 14 remaining) [2022-11-16 11:06:39,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 14 remaining) [2022-11-16 11:06:39,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-11-16 11:06:39,970 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-11-16 11:06:39,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-11-16 11:06:39,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-11-16 11:06:39,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-11-16 11:06:39,971 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-11-16 11:06:39,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-16 11:06:40,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-16 11:06:40,177 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:06:40,181 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:06:40,182 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:06:40,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:06:40 BasicIcfg [2022-11-16 11:06:40,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:06:40,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:06:40,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:06:40,187 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:06:40,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:06:34" (3/4) ... [2022-11-16 11:06:40,190 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:06:40,196 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 11:06:40,197 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 11:06:40,201 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-16 11:06:40,201 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:06:40,201 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:06:40,201 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:06:40,236 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:06:40,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:06:40,237 INFO L158 Benchmark]: Toolchain (without parser) took 7110.77ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 91.9MB in the beginning and 46.8MB in the end (delta: 45.1MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. [2022-11-16 11:06:40,237 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory was 108.4MB in the beginning and 108.2MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:06:40,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.01ms. Allocated memory is still 127.9MB. Free memory was 91.8MB in the beginning and 103.5MB in the end (delta: -11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:06:40,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.53ms. Allocated memory is still 127.9MB. Free memory was 103.5MB in the beginning and 102.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:06:40,238 INFO L158 Benchmark]: Boogie Preprocessor took 41.66ms. Allocated memory is still 127.9MB. Free memory was 102.0MB in the beginning and 100.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:06:40,238 INFO L158 Benchmark]: RCFGBuilder took 529.48ms. Allocated memory is still 127.9MB. Free memory was 100.3MB in the beginning and 85.7MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:06:40,239 INFO L158 Benchmark]: TraceAbstraction took 6053.02ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 85.3MB in the beginning and 50.4MB in the end (delta: 34.9MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. [2022-11-16 11:06:40,239 INFO L158 Benchmark]: Witness Printer took 49.39ms. Allocated memory is still 157.3MB. Free memory was 50.4MB in the beginning and 46.8MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:06:40,241 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory was 108.4MB in the beginning and 108.2MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.01ms. Allocated memory is still 127.9MB. Free memory was 91.8MB in the beginning and 103.5MB in the end (delta: -11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.53ms. Allocated memory is still 127.9MB. Free memory was 103.5MB in the beginning and 102.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.66ms. Allocated memory is still 127.9MB. Free memory was 102.0MB in the beginning and 100.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.48ms. Allocated memory is still 127.9MB. Free memory was 100.3MB in the beginning and 85.7MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6053.02ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 85.3MB in the beginning and 50.4MB in the end (delta: 34.9MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. * Witness Printer took 49.39ms. Allocated memory is still 157.3MB. Free memory was 50.4MB in the beginning and 46.8MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: 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 5 procedures, 161 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.8s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 384 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 384 mSDsluCounter, 171 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 116 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 519 IncrementalHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 55 mSDtfsCounter, 519 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 507 GetRequests, 413 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=377occurred in iteration=7, InterpolantAutomatonStates: 81, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 875 NumberOfCodeBlocks, 839 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1034 ConstructedInterpolants, 0 QuantifiedInterpolants, 2030 SizeOfPredicates, 10 NumberOfNonLiveVariables, 432 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 123/266 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:06:40,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d770ad-a0ae-49f2-b9f7-41f971bed530/bin/uautomizer-tPACEb0tL8/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