./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a --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 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb --- 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-b5237d8 [2022-11-21 16:14:49,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:14:49,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:14:49,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:14:49,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:14:49,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:14:49,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:14:49,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:14:49,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:14:49,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:14:49,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:14:49,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:14:49,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:14:49,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:14:49,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:14:49,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:14:49,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:14:49,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:14:49,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:14:49,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:14:49,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:14:49,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:14:49,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:14:49,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:14:49,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:14:49,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:14:49,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:14:49,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:14:49,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:14:49,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:14:49,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:14:49,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:14:49,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:14:49,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:14:49,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:14:49,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:14:49,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:14:49,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:14:49,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:14:49,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:14:49,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:14:49,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:14:49,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:14:49,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:14:49,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:14:49,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:14:49,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:14:49,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:14:49,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:14:49,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:14:49,721 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:14:49,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:14:49,722 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:14:49,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:14:49,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:14:49,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:14:49,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:14:49,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:14:49,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:14:49,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:14:49,723 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:14:49,723 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:14:49,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:14:49,724 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:14:49,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:14:49,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:14:49,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:14:49,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:14:49,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:14:49,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:14:49,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:14:49,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:14:49,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:14:49,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:14:49,726 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:14:49,726 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:14:49,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:14:49,726 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_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb [2022-11-21 16:14:50,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:14:50,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:14:50,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:14:50,155 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:14:50,156 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:14:50,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2022-11-21 16:14:53,543 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:14:53,959 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:14:53,963 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2022-11-21 16:14:53,984 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/data/1707c55cb/4f882876809e4f51b16091674d10edc7/FLAGb81967914 [2022-11-21 16:14:54,011 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/data/1707c55cb/4f882876809e4f51b16091674d10edc7 [2022-11-21 16:14:54,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:14:54,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:14:54,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:14:54,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:14:54,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:14:54,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:54,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@412ab4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54, skipping insertion in model container [2022-11-21 16:14:54,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:54,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:14:54,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:14:54,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:14:54,827 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:14:54,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:14:54,951 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:14:54,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54 WrapperNode [2022-11-21 16:14:54,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:14:54,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:14:54,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:14:54,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:14:54,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:54,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:55,024 INFO L138 Inliner]: procedures = 266, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2022-11-21 16:14:55,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:14:55,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:14:55,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:14:55,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:14:55,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:55,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:55,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:55,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:55,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:55,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:55,054 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:55,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:55,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:14:55,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:14:55,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:14:55,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:14:55,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54" (1/1) ... [2022-11-21 16:14:55,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:14:55,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:14:55,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:14:55,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:14:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:14:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:14:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:14:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:14:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:14:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 16:14:55,158 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 16:14:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:14:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:14:55,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:14:55,161 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:14:55,334 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:14:55,337 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:14:55,650 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:14:55,659 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:14:55,659 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:14:55,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:14:55 BoogieIcfgContainer [2022-11-21 16:14:55,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:14:55,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:14:55,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:14:55,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:14:55,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:14:54" (1/3) ... [2022-11-21 16:14:55,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15345858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:14:55, skipping insertion in model container [2022-11-21 16:14:55,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:14:54" (2/3) ... [2022-11-21 16:14:55,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15345858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:14:55, skipping insertion in model container [2022-11-21 16:14:55,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:14:55" (3/3) ... [2022-11-21 16:14:55,684 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2022-11-21 16:14:55,693 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:14:55,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:14:55,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-21 16:14:55,704 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:14:55,775 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:14:55,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions, 181 flow [2022-11-21 16:14:55,877 INFO L130 PetriNetUnfolder]: 4/87 cut-off events. [2022-11-21 16:14:55,878 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:14:55,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 87 events. 4/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-11-21 16:14:55,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 88 transitions, 181 flow [2022-11-21 16:14:55,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 87 transitions, 177 flow [2022-11-21 16:14:55,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:14:55,912 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;@32b4a87d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:14:55,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-21 16:14:55,928 INFO L130 PetriNetUnfolder]: 0/34 cut-off events. [2022-11-21 16:14:55,928 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:14:55,928 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:55,929 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] [2022-11-21 16:14:55,930 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:14:55,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:55,937 INFO L85 PathProgramCache]: Analyzing trace with hash 920708226, now seen corresponding path program 1 times [2022-11-21 16:14:55,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:55,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765376806] [2022-11-21 16:14:55,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:55,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:14:56,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:56,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765376806] [2022-11-21 16:14:56,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765376806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:56,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:56,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:14:56,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98171347] [2022-11-21 16:14:56,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:56,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:14:56,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:56,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:14:56,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:14:56,572 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 88 [2022-11-21 16:14:56,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 87 transitions, 177 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2022-11-21 16:14:56,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:56,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 88 [2022-11-21 16:14:56,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:56,721 INFO L130 PetriNetUnfolder]: 18/210 cut-off events. [2022-11-21 16:14:56,721 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:14:56,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 210 events. 18/210 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 728 event pairs, 2 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 219. Up to 14 conditions per place. [2022-11-21 16:14:56,727 INFO L137 encePairwiseOnDemand]: 81/88 looper letters, 19 selfloop transitions, 6 changer transitions 4/101 dead transitions. [2022-11-21 16:14:56,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 101 transitions, 255 flow [2022-11-21 16:14:56,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:14:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:14:56,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 414 transitions. [2022-11-21 16:14:56,746 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9409090909090909 [2022-11-21 16:14:56,747 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 414 transitions. [2022-11-21 16:14:56,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 414 transitions. [2022-11-21 16:14:56,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:56,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 414 transitions. [2022-11-21 16:14:56,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.8) internal successors, (414), 5 states have internal predecessors, (414), 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) [2022-11-21 16:14:56,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:14:56,766 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:14:56,769 INFO L175 Difference]: Start difference. First operand has 87 places, 87 transitions, 177 flow. Second operand 5 states and 414 transitions. [2022-11-21 16:14:56,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 101 transitions, 255 flow [2022-11-21 16:14:56,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 101 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:14:56,779 INFO L231 Difference]: Finished difference. Result has 93 places, 88 transitions, 217 flow [2022-11-21 16:14:56,784 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=217, PETRI_PLACES=93, PETRI_TRANSITIONS=88} [2022-11-21 16:14:56,792 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 6 predicate places. [2022-11-21 16:14:56,792 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 88 transitions, 217 flow [2022-11-21 16:14:56,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2022-11-21 16:14:56,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:56,793 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] [2022-11-21 16:14:56,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:14:56,795 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:14:56,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:56,797 INFO L85 PathProgramCache]: Analyzing trace with hash -953944780, now seen corresponding path program 1 times [2022-11-21 16:14:56,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:56,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603748431] [2022-11-21 16:14:56,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:56,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:14:56,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:56,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603748431] [2022-11-21 16:14:56,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603748431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:56,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:56,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:14:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133880146] [2022-11-21 16:14:56,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:56,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:14:56,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:56,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:14:56,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:14:56,971 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 88 [2022-11-21 16:14:56,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 88 transitions, 217 flow. Second operand has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 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) [2022-11-21 16:14:56,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:56,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 88 [2022-11-21 16:14:56,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:57,152 INFO L130 PetriNetUnfolder]: 2/178 cut-off events. [2022-11-21 16:14:57,153 INFO L131 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2022-11-21 16:14:57,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 178 events. 2/178 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 524 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 212. Up to 30 conditions per place. [2022-11-21 16:14:57,164 INFO L137 encePairwiseOnDemand]: 80/88 looper letters, 22 selfloop transitions, 7 changer transitions 0/94 dead transitions. [2022-11-21 16:14:57,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 94 transitions, 287 flow [2022-11-21 16:14:57,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:14:57,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:14:57,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 350 transitions. [2022-11-21 16:14:57,171 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7954545454545454 [2022-11-21 16:14:57,173 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 350 transitions. [2022-11-21 16:14:57,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 350 transitions. [2022-11-21 16:14:57,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:57,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 350 transitions. [2022-11-21 16:14:57,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:14:57,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:14:57,182 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:14:57,182 INFO L175 Difference]: Start difference. First operand has 93 places, 88 transitions, 217 flow. Second operand 5 states and 350 transitions. [2022-11-21 16:14:57,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 94 transitions, 287 flow [2022-11-21 16:14:57,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 94 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:14:57,189 INFO L231 Difference]: Finished difference. Result has 97 places, 92 transitions, 260 flow [2022-11-21 16:14:57,190 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=260, PETRI_PLACES=97, PETRI_TRANSITIONS=92} [2022-11-21 16:14:57,191 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 10 predicate places. [2022-11-21 16:14:57,191 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 92 transitions, 260 flow [2022-11-21 16:14:57,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 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) [2022-11-21 16:14:57,192 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:57,193 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] [2022-11-21 16:14:57,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:14:57,194 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:14:57,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:57,197 INFO L85 PathProgramCache]: Analyzing trace with hash 492483061, now seen corresponding path program 1 times [2022-11-21 16:14:57,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:57,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148302582] [2022-11-21 16:14:57,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:57,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:57,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:14:57,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:57,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148302582] [2022-11-21 16:14:57,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148302582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:57,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:57,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:14:57,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804882166] [2022-11-21 16:14:57,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:57,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:14:57,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:57,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:14:57,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:14:57,338 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 88 [2022-11-21 16:14:57,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 92 transitions, 260 flow. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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) [2022-11-21 16:14:57,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:57,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 88 [2022-11-21 16:14:57,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:57,492 INFO L130 PetriNetUnfolder]: 7/225 cut-off events. [2022-11-21 16:14:57,492 INFO L131 PetriNetUnfolder]: For 33/37 co-relation queries the response was YES. [2022-11-21 16:14:57,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 225 events. 7/225 cut-off events. For 33/37 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 880 event pairs, 0 based on Foata normal form. 2/205 useless extension candidates. Maximal degree in co-relation 304. Up to 30 conditions per place. [2022-11-21 16:14:57,495 INFO L137 encePairwiseOnDemand]: 78/88 looper letters, 27 selfloop transitions, 8 changer transitions 0/100 dead transitions. [2022-11-21 16:14:57,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 100 transitions, 344 flow [2022-11-21 16:14:57,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:14:57,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:14:57,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 357 transitions. [2022-11-21 16:14:57,498 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8113636363636364 [2022-11-21 16:14:57,498 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 357 transitions. [2022-11-21 16:14:57,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 357 transitions. [2022-11-21 16:14:57,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:57,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 357 transitions. [2022-11-21 16:14:57,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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) [2022-11-21 16:14:57,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:14:57,503 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:14:57,504 INFO L175 Difference]: Start difference. First operand has 97 places, 92 transitions, 260 flow. Second operand 5 states and 357 transitions. [2022-11-21 16:14:57,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 100 transitions, 344 flow [2022-11-21 16:14:57,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 100 transitions, 339 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:14:57,510 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 294 flow [2022-11-21 16:14:57,510 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=294, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2022-11-21 16:14:57,511 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 15 predicate places. [2022-11-21 16:14:57,512 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 294 flow [2022-11-21 16:14:57,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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) [2022-11-21 16:14:57,512 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:57,513 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] [2022-11-21 16:14:57,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:14:57,513 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:14:57,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:57,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1957195400, now seen corresponding path program 1 times [2022-11-21 16:14:57,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:57,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672651386] [2022-11-21 16:14:57,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:57,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:57,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:14:57,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:57,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672651386] [2022-11-21 16:14:57,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672651386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:57,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:57,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:14:57,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897672455] [2022-11-21 16:14:57,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:57,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:14:57,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:57,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:14:57,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:14:57,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 88 [2022-11-21 16:14:57,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 294 flow. Second operand has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 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) [2022-11-21 16:14:57,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:57,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 88 [2022-11-21 16:14:57,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:57,852 INFO L130 PetriNetUnfolder]: 6/222 cut-off events. [2022-11-21 16:14:57,855 INFO L131 PetriNetUnfolder]: For 91/95 co-relation queries the response was YES. [2022-11-21 16:14:57,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 222 events. 6/222 cut-off events. For 91/95 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 864 event pairs, 0 based on Foata normal form. 3/207 useless extension candidates. Maximal degree in co-relation 318. Up to 16 conditions per place. [2022-11-21 16:14:57,860 INFO L137 encePairwiseOnDemand]: 75/88 looper letters, 13 selfloop transitions, 16 changer transitions 1/93 dead transitions. [2022-11-21 16:14:57,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 93 transitions, 345 flow [2022-11-21 16:14:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:14:57,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-21 16:14:57,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 523 transitions. [2022-11-21 16:14:57,863 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7428977272727273 [2022-11-21 16:14:57,864 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 523 transitions. [2022-11-21 16:14:57,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 523 transitions. [2022-11-21 16:14:57,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:57,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 523 transitions. [2022-11-21 16:14:57,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 65.375) internal successors, (523), 8 states have internal predecessors, (523), 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) [2022-11-21 16:14:57,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 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) [2022-11-21 16:14:57,871 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 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) [2022-11-21 16:14:57,872 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 294 flow. Second operand 8 states and 523 transitions. [2022-11-21 16:14:57,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 93 transitions, 345 flow [2022-11-21 16:14:57,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 93 transitions, 345 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:14:57,887 INFO L231 Difference]: Finished difference. Result has 106 places, 91 transitions, 309 flow [2022-11-21 16:14:57,888 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=309, PETRI_PLACES=106, PETRI_TRANSITIONS=91} [2022-11-21 16:14:57,890 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 19 predicate places. [2022-11-21 16:14:57,891 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 91 transitions, 309 flow [2022-11-21 16:14:57,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 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) [2022-11-21 16:14:57,893 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:57,893 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] [2022-11-21 16:14:57,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:14:57,896 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:14:57,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:57,901 INFO L85 PathProgramCache]: Analyzing trace with hash -543515087, now seen corresponding path program 1 times [2022-11-21 16:14:57,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:57,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165032781] [2022-11-21 16:14:57,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:57,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:14:58,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:58,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165032781] [2022-11-21 16:14:58,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165032781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:58,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:58,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:14:58,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430463464] [2022-11-21 16:14:58,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:58,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:14:58,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:58,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:14:58,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:14:58,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 88 [2022-11-21 16:14:58,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 91 transitions, 309 flow. Second operand has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 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) [2022-11-21 16:14:58,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:58,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 88 [2022-11-21 16:14:58,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:58,193 INFO L130 PetriNetUnfolder]: 6/204 cut-off events. [2022-11-21 16:14:58,194 INFO L131 PetriNetUnfolder]: For 122/126 co-relation queries the response was YES. [2022-11-21 16:14:58,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 204 events. 6/204 cut-off events. For 122/126 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 718 event pairs, 0 based on Foata normal form. 1/187 useless extension candidates. Maximal degree in co-relation 309. Up to 26 conditions per place. [2022-11-21 16:14:58,195 INFO L137 encePairwiseOnDemand]: 80/88 looper letters, 17 selfloop transitions, 10 changer transitions 0/90 dead transitions. [2022-11-21 16:14:58,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 90 transitions, 358 flow [2022-11-21 16:14:58,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:14:58,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:14:58,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 395 transitions. [2022-11-21 16:14:58,198 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7481060606060606 [2022-11-21 16:14:58,198 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 395 transitions. [2022-11-21 16:14:58,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 395 transitions. [2022-11-21 16:14:58,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:58,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 395 transitions. [2022-11-21 16:14:58,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 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) [2022-11-21 16:14:58,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 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) [2022-11-21 16:14:58,203 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 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) [2022-11-21 16:14:58,203 INFO L175 Difference]: Start difference. First operand has 106 places, 91 transitions, 309 flow. Second operand 6 states and 395 transitions. [2022-11-21 16:14:58,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 90 transitions, 358 flow [2022-11-21 16:14:58,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 90 transitions, 329 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-21 16:14:58,213 INFO L231 Difference]: Finished difference. Result has 102 places, 90 transitions, 295 flow [2022-11-21 16:14:58,214 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=295, PETRI_PLACES=102, PETRI_TRANSITIONS=90} [2022-11-21 16:14:58,218 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 15 predicate places. [2022-11-21 16:14:58,219 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 90 transitions, 295 flow [2022-11-21 16:14:58,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 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) [2022-11-21 16:14:58,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:58,220 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] [2022-11-21 16:14:58,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:14:58,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:14:58,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:58,225 INFO L85 PathProgramCache]: Analyzing trace with hash 941374692, now seen corresponding path program 1 times [2022-11-21 16:14:58,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:58,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276339809] [2022-11-21 16:14:58,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:58,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:14:58,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:58,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276339809] [2022-11-21 16:14:58,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276339809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:58,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:58,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:14:58,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773624250] [2022-11-21 16:14:58,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:58,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:14:58,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:58,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:14:58,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:14:58,388 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 88 [2022-11-21 16:14:58,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 90 transitions, 295 flow. Second operand has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 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) [2022-11-21 16:14:58,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:58,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 88 [2022-11-21 16:14:58,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:58,546 INFO L130 PetriNetUnfolder]: 6/203 cut-off events. [2022-11-21 16:14:58,547 INFO L131 PetriNetUnfolder]: For 118/122 co-relation queries the response was YES. [2022-11-21 16:14:58,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 203 events. 6/203 cut-off events. For 118/122 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 722 event pairs, 0 based on Foata normal form. 1/186 useless extension candidates. Maximal degree in co-relation 299. Up to 21 conditions per place. [2022-11-21 16:14:58,549 INFO L137 encePairwiseOnDemand]: 78/88 looper letters, 16 selfloop transitions, 12 changer transitions 0/91 dead transitions. [2022-11-21 16:14:58,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 91 transitions, 348 flow [2022-11-21 16:14:58,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:14:58,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-21 16:14:58,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 522 transitions. [2022-11-21 16:14:58,552 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7414772727272727 [2022-11-21 16:14:58,552 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 522 transitions. [2022-11-21 16:14:58,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 522 transitions. [2022-11-21 16:14:58,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:58,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 522 transitions. [2022-11-21 16:14:58,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:14:58,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 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) [2022-11-21 16:14:58,558 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 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) [2022-11-21 16:14:58,558 INFO L175 Difference]: Start difference. First operand has 102 places, 90 transitions, 295 flow. Second operand 8 states and 522 transitions. [2022-11-21 16:14:58,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 91 transitions, 348 flow [2022-11-21 16:14:58,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 91 transitions, 328 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:14:58,563 INFO L231 Difference]: Finished difference. Result has 103 places, 89 transitions, 292 flow [2022-11-21 16:14:58,564 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=292, PETRI_PLACES=103, PETRI_TRANSITIONS=89} [2022-11-21 16:14:58,568 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 16 predicate places. [2022-11-21 16:14:58,568 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 89 transitions, 292 flow [2022-11-21 16:14:58,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 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) [2022-11-21 16:14:58,569 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:58,569 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] [2022-11-21 16:14:58,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:14:58,570 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:14:58,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:58,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1492193982, now seen corresponding path program 1 times [2022-11-21 16:14:58,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:58,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560706228] [2022-11-21 16:14:58,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:58,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:14:58,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:58,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560706228] [2022-11-21 16:14:58,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560706228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:58,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:58,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:14:58,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387446796] [2022-11-21 16:14:58,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:58,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:14:58,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:58,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:14:58,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:14:58,724 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 88 [2022-11-21 16:14:58,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 89 transitions, 292 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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) [2022-11-21 16:14:58,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:58,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 88 [2022-11-21 16:14:58,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:58,833 INFO L130 PetriNetUnfolder]: 26/329 cut-off events. [2022-11-21 16:14:58,833 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2022-11-21 16:14:58,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 329 events. 26/329 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1752 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 517. Up to 32 conditions per place. [2022-11-21 16:14:58,836 INFO L137 encePairwiseOnDemand]: 81/88 looper letters, 20 selfloop transitions, 7 changer transitions 0/100 dead transitions. [2022-11-21 16:14:58,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 100 transitions, 384 flow [2022-11-21 16:14:58,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:14:58,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:14:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 410 transitions. [2022-11-21 16:14:58,839 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9318181818181818 [2022-11-21 16:14:58,839 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 410 transitions. [2022-11-21 16:14:58,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 410 transitions. [2022-11-21 16:14:58,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:58,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 410 transitions. [2022-11-21 16:14:58,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 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) [2022-11-21 16:14:58,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:14:58,843 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:14:58,844 INFO L175 Difference]: Start difference. First operand has 103 places, 89 transitions, 292 flow. Second operand 5 states and 410 transitions. [2022-11-21 16:14:58,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 100 transitions, 384 flow [2022-11-21 16:14:58,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 100 transitions, 356 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-11-21 16:14:58,849 INFO L231 Difference]: Finished difference. Result has 103 places, 92 transitions, 311 flow [2022-11-21 16:14:58,850 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=311, PETRI_PLACES=103, PETRI_TRANSITIONS=92} [2022-11-21 16:14:58,850 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 16 predicate places. [2022-11-21 16:14:58,851 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 92 transitions, 311 flow [2022-11-21 16:14:58,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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) [2022-11-21 16:14:58,851 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:58,852 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] [2022-11-21 16:14:58,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:14:58,853 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:14:58,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash 986670905, now seen corresponding path program 1 times [2022-11-21 16:14:58,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:58,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53058975] [2022-11-21 16:14:58,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:58,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:58,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:14:58,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:58,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53058975] [2022-11-21 16:14:58,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53058975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:58,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:58,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:14:58,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415238946] [2022-11-21 16:14:58,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:59,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:14:59,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:59,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:14:59,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:14:59,004 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 88 [2022-11-21 16:14:59,005 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 92 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2022-11-21 16:14:59,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:59,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 88 [2022-11-21 16:14:59,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:59,096 INFO L130 PetriNetUnfolder]: 8/222 cut-off events. [2022-11-21 16:14:59,097 INFO L131 PetriNetUnfolder]: For 85/87 co-relation queries the response was YES. [2022-11-21 16:14:59,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 222 events. 8/222 cut-off events. For 85/87 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 900 event pairs, 0 based on Foata normal form. 2/211 useless extension candidates. Maximal degree in co-relation 378. Up to 51 conditions per place. [2022-11-21 16:14:59,099 INFO L137 encePairwiseOnDemand]: 81/88 looper letters, 21 selfloop transitions, 7 changer transitions 1/96 dead transitions. [2022-11-21 16:14:59,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 96 transitions, 377 flow [2022-11-21 16:14:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:14:59,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:14:59,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 348 transitions. [2022-11-21 16:14:59,101 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7909090909090909 [2022-11-21 16:14:59,101 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 348 transitions. [2022-11-21 16:14:59,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 348 transitions. [2022-11-21 16:14:59,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:59,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 348 transitions. [2022-11-21 16:14:59,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 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) [2022-11-21 16:14:59,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:14:59,105 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:14:59,106 INFO L175 Difference]: Start difference. First operand has 103 places, 92 transitions, 311 flow. Second operand 5 states and 348 transitions. [2022-11-21 16:14:59,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 96 transitions, 377 flow [2022-11-21 16:14:59,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 96 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:14:59,110 INFO L231 Difference]: Finished difference. Result has 109 places, 94 transitions, 345 flow [2022-11-21 16:14:59,110 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=345, PETRI_PLACES=109, PETRI_TRANSITIONS=94} [2022-11-21 16:14:59,111 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 22 predicate places. [2022-11-21 16:14:59,112 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 94 transitions, 345 flow [2022-11-21 16:14:59,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2022-11-21 16:14:59,112 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:59,112 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] [2022-11-21 16:14:59,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:14:59,113 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:14:59,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:59,114 INFO L85 PathProgramCache]: Analyzing trace with hash 522027164, now seen corresponding path program 1 times [2022-11-21 16:14:59,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:59,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632749768] [2022-11-21 16:14:59,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:59,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:59,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:14:59,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:59,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632749768] [2022-11-21 16:14:59,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632749768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:59,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:59,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:14:59,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216919732] [2022-11-21 16:14:59,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:59,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:14:59,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:59,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:14:59,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:14:59,168 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 88 [2022-11-21 16:14:59,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 94 transitions, 345 flow. Second operand has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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) [2022-11-21 16:14:59,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:59,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 88 [2022-11-21 16:14:59,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:59,261 INFO L130 PetriNetUnfolder]: 8/221 cut-off events. [2022-11-21 16:14:59,261 INFO L131 PetriNetUnfolder]: For 135/137 co-relation queries the response was YES. [2022-11-21 16:14:59,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 221 events. 8/221 cut-off events. For 135/137 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 900 event pairs, 0 based on Foata normal form. 3/224 useless extension candidates. Maximal degree in co-relation 416. Up to 56 conditions per place. [2022-11-21 16:14:59,263 INFO L137 encePairwiseOnDemand]: 84/88 looper letters, 22 selfloop transitions, 1 changer transitions 5/95 dead transitions. [2022-11-21 16:14:59,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 95 transitions, 401 flow [2022-11-21 16:14:59,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:14:59,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:14:59,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 345 transitions. [2022-11-21 16:14:59,266 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7840909090909091 [2022-11-21 16:14:59,266 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 345 transitions. [2022-11-21 16:14:59,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 345 transitions. [2022-11-21 16:14:59,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:59,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 345 transitions. [2022-11-21 16:14:59,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 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) [2022-11-21 16:14:59,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:14:59,270 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:14:59,270 INFO L175 Difference]: Start difference. First operand has 109 places, 94 transitions, 345 flow. Second operand 5 states and 345 transitions. [2022-11-21 16:14:59,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 95 transitions, 401 flow [2022-11-21 16:14:59,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 95 transitions, 395 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:14:59,275 INFO L231 Difference]: Finished difference. Result has 112 places, 90 transitions, 313 flow [2022-11-21 16:14:59,275 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=313, PETRI_PLACES=112, PETRI_TRANSITIONS=90} [2022-11-21 16:14:59,276 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 25 predicate places. [2022-11-21 16:14:59,276 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 90 transitions, 313 flow [2022-11-21 16:14:59,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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) [2022-11-21 16:14:59,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:59,277 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] [2022-11-21 16:14:59,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:14:59,278 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:14:59,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:59,279 INFO L85 PathProgramCache]: Analyzing trace with hash -2083984072, now seen corresponding path program 1 times [2022-11-21 16:14:59,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:59,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43438423] [2022-11-21 16:14:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:59,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:59,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:14:59,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:59,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43438423] [2022-11-21 16:14:59,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43438423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:59,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:59,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:14:59,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256677558] [2022-11-21 16:14:59,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:59,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:14:59,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:59,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:14:59,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:14:59,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 88 [2022-11-21 16:14:59,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 90 transitions, 313 flow. Second operand has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2022-11-21 16:14:59,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:59,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 88 [2022-11-21 16:14:59,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:59,428 INFO L130 PetriNetUnfolder]: 7/209 cut-off events. [2022-11-21 16:14:59,429 INFO L131 PetriNetUnfolder]: For 118/120 co-relation queries the response was YES. [2022-11-21 16:14:59,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 209 events. 7/209 cut-off events. For 118/120 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 820 event pairs, 0 based on Foata normal form. 8/217 useless extension candidates. Maximal degree in co-relation 394. Up to 30 conditions per place. [2022-11-21 16:14:59,431 INFO L137 encePairwiseOnDemand]: 82/88 looper letters, 17 selfloop transitions, 5 changer transitions 0/89 dead transitions. [2022-11-21 16:14:59,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 89 transitions, 351 flow [2022-11-21 16:14:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:14:59,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:14:59,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2022-11-21 16:14:59,434 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7897727272727273 [2022-11-21 16:14:59,434 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 278 transitions. [2022-11-21 16:14:59,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 278 transitions. [2022-11-21 16:14:59,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:59,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 278 transitions. [2022-11-21 16:14:59,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 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) [2022-11-21 16:14:59,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 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) [2022-11-21 16:14:59,437 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 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) [2022-11-21 16:14:59,438 INFO L175 Difference]: Start difference. First operand has 112 places, 90 transitions, 313 flow. Second operand 4 states and 278 transitions. [2022-11-21 16:14:59,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 89 transitions, 351 flow [2022-11-21 16:14:59,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 89 transitions, 327 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-11-21 16:14:59,442 INFO L231 Difference]: Finished difference. Result has 104 places, 89 transitions, 293 flow [2022-11-21 16:14:59,443 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=293, PETRI_PLACES=104, PETRI_TRANSITIONS=89} [2022-11-21 16:14:59,443 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 17 predicate places. [2022-11-21 16:14:59,444 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 89 transitions, 293 flow [2022-11-21 16:14:59,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2022-11-21 16:14:59,445 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:59,445 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] [2022-11-21 16:14:59,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:14:59,445 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:14:59,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:59,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1470486439, now seen corresponding path program 1 times [2022-11-21 16:14:59,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:59,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887777978] [2022-11-21 16:14:59,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:59,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:14:59,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:14:59,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:14:59,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887777978] [2022-11-21 16:14:59,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887777978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:14:59,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:14:59,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:14:59,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311554555] [2022-11-21 16:14:59,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:14:59,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:14:59,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:14:59,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:14:59,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:14:59,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 88 [2022-11-21 16:14:59,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 89 transitions, 293 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 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) [2022-11-21 16:14:59,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:14:59,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 88 [2022-11-21 16:14:59,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:14:59,845 INFO L130 PetriNetUnfolder]: 84/611 cut-off events. [2022-11-21 16:14:59,845 INFO L131 PetriNetUnfolder]: For 230/242 co-relation queries the response was YES. [2022-11-21 16:14:59,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1146 conditions, 611 events. 84/611 cut-off events. For 230/242 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4113 event pairs, 0 based on Foata normal form. 12/595 useless extension candidates. Maximal degree in co-relation 1133. Up to 38 conditions per place. [2022-11-21 16:14:59,851 INFO L137 encePairwiseOnDemand]: 80/88 looper letters, 34 selfloop transitions, 25 changer transitions 0/123 dead transitions. [2022-11-21 16:14:59,851 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 123 transitions, 525 flow [2022-11-21 16:14:59,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:14:59,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 16:14:59,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 982 transitions. [2022-11-21 16:14:59,856 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8583916083916084 [2022-11-21 16:14:59,856 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 982 transitions. [2022-11-21 16:14:59,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 982 transitions. [2022-11-21 16:14:59,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:14:59,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 982 transitions. [2022-11-21 16:14:59,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.53846153846153) internal successors, (982), 13 states have internal predecessors, (982), 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) [2022-11-21 16:14:59,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 88.0) internal successors, (1232), 14 states have internal predecessors, (1232), 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) [2022-11-21 16:14:59,866 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 88.0) internal successors, (1232), 14 states have internal predecessors, (1232), 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) [2022-11-21 16:14:59,866 INFO L175 Difference]: Start difference. First operand has 104 places, 89 transitions, 293 flow. Second operand 13 states and 982 transitions. [2022-11-21 16:14:59,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 123 transitions, 525 flow [2022-11-21 16:14:59,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 123 transitions, 515 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 16:14:59,872 INFO L231 Difference]: Finished difference. Result has 114 places, 101 transitions, 399 flow [2022-11-21 16:14:59,873 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=399, PETRI_PLACES=114, PETRI_TRANSITIONS=101} [2022-11-21 16:14:59,874 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 27 predicate places. [2022-11-21 16:14:59,874 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 101 transitions, 399 flow [2022-11-21 16:14:59,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 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) [2022-11-21 16:14:59,875 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:14:59,875 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] [2022-11-21 16:14:59,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:14:59,876 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:14:59,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:14:59,876 INFO L85 PathProgramCache]: Analyzing trace with hash -133903625, now seen corresponding path program 1 times [2022-11-21 16:14:59,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:14:59,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683251357] [2022-11-21 16:14:59,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:14:59,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:14:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:00,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:15:00,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:00,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683251357] [2022-11-21 16:15:00,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683251357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:00,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:00,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:15:00,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073711874] [2022-11-21 16:15:00,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:00,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:15:00,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:00,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:15:00,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:15:00,004 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 88 [2022-11-21 16:15:00,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 101 transitions, 399 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 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) [2022-11-21 16:15:00,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:15:00,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 88 [2022-11-21 16:15:00,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:15:00,236 INFO L130 PetriNetUnfolder]: 80/615 cut-off events. [2022-11-21 16:15:00,236 INFO L131 PetriNetUnfolder]: For 441/477 co-relation queries the response was YES. [2022-11-21 16:15:00,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 615 events. 80/615 cut-off events. For 441/477 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4199 event pairs, 0 based on Foata normal form. 28/615 useless extension candidates. Maximal degree in co-relation 1225. Up to 37 conditions per place. [2022-11-21 16:15:00,242 INFO L137 encePairwiseOnDemand]: 80/88 looper letters, 32 selfloop transitions, 33 changer transitions 0/129 dead transitions. [2022-11-21 16:15:00,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 129 transitions, 638 flow [2022-11-21 16:15:00,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:15:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 16:15:00,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 980 transitions. [2022-11-21 16:15:00,246 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8566433566433567 [2022-11-21 16:15:00,246 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 980 transitions. [2022-11-21 16:15:00,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 980 transitions. [2022-11-21 16:15:00,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:15:00,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 980 transitions. [2022-11-21 16:15:00,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.38461538461539) internal successors, (980), 13 states have internal predecessors, (980), 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) [2022-11-21 16:15:00,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 88.0) internal successors, (1232), 14 states have internal predecessors, (1232), 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) [2022-11-21 16:15:00,254 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 88.0) internal successors, (1232), 14 states have internal predecessors, (1232), 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) [2022-11-21 16:15:00,255 INFO L175 Difference]: Start difference. First operand has 114 places, 101 transitions, 399 flow. Second operand 13 states and 980 transitions. [2022-11-21 16:15:00,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 129 transitions, 638 flow [2022-11-21 16:15:00,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 129 transitions, 574 flow, removed 12 selfloop flow, removed 7 redundant places. [2022-11-21 16:15:00,261 INFO L231 Difference]: Finished difference. Result has 120 places, 111 transitions, 483 flow [2022-11-21 16:15:00,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=483, PETRI_PLACES=120, PETRI_TRANSITIONS=111} [2022-11-21 16:15:00,263 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 33 predicate places. [2022-11-21 16:15:00,263 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 111 transitions, 483 flow [2022-11-21 16:15:00,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 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) [2022-11-21 16:15:00,264 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:15:00,264 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] [2022-11-21 16:15:00,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:15:00,265 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:15:00,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:00,265 INFO L85 PathProgramCache]: Analyzing trace with hash -178996611, now seen corresponding path program 1 times [2022-11-21 16:15:00,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:00,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43242196] [2022-11-21 16:15:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:00,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:15:00,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:00,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43242196] [2022-11-21 16:15:00,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43242196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:00,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:00,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:15:00,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926120088] [2022-11-21 16:15:00,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:00,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:15:00,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:00,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:15:00,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:15:00,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 88 [2022-11-21 16:15:00,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 111 transitions, 483 flow. Second operand has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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) [2022-11-21 16:15:00,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:15:00,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 88 [2022-11-21 16:15:00,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:15:00,428 INFO L130 PetriNetUnfolder]: 30/357 cut-off events. [2022-11-21 16:15:00,429 INFO L131 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2022-11-21 16:15:00,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 357 events. 30/357 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1954 event pairs, 0 based on Foata normal form. 0/357 useless extension candidates. Maximal degree in co-relation 736. Up to 36 conditions per place. [2022-11-21 16:15:00,431 INFO L137 encePairwiseOnDemand]: 80/88 looper letters, 13 selfloop transitions, 8 changer transitions 22/110 dead transitions. [2022-11-21 16:15:00,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 110 transitions, 522 flow [2022-11-21 16:15:00,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:15:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:15:00,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 341 transitions. [2022-11-21 16:15:00,434 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.775 [2022-11-21 16:15:00,434 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 341 transitions. [2022-11-21 16:15:00,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 341 transitions. [2022-11-21 16:15:00,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:15:00,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 341 transitions. [2022-11-21 16:15:00,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 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) [2022-11-21 16:15:00,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:15:00,438 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-21 16:15:00,438 INFO L175 Difference]: Start difference. First operand has 120 places, 111 transitions, 483 flow. Second operand 5 states and 341 transitions. [2022-11-21 16:15:00,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 110 transitions, 522 flow [2022-11-21 16:15:00,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 110 transitions, 479 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-11-21 16:15:00,444 INFO L231 Difference]: Finished difference. Result has 115 places, 88 transitions, 292 flow [2022-11-21 16:15:00,444 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=292, PETRI_PLACES=115, PETRI_TRANSITIONS=88} [2022-11-21 16:15:00,445 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 28 predicate places. [2022-11-21 16:15:00,445 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 88 transitions, 292 flow [2022-11-21 16:15:00,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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) [2022-11-21 16:15:00,446 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:15:00,446 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] [2022-11-21 16:15:00,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:15:00,447 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:15:00,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:00,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1659560488, now seen corresponding path program 1 times [2022-11-21 16:15:00,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:00,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806296741] [2022-11-21 16:15:00,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:00,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:00,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:15:00,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:00,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806296741] [2022-11-21 16:15:00,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806296741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:00,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:00,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:15:00,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316148373] [2022-11-21 16:15:00,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:00,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:15:00,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:00,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:15:00,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:15:00,595 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 88 [2022-11-21 16:15:00,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 88 transitions, 292 flow. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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) [2022-11-21 16:15:00,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:15:00,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 88 [2022-11-21 16:15:00,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:15:00,732 INFO L130 PetriNetUnfolder]: 19/205 cut-off events. [2022-11-21 16:15:00,732 INFO L131 PetriNetUnfolder]: For 95/125 co-relation queries the response was YES. [2022-11-21 16:15:00,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 205 events. 19/205 cut-off events. For 95/125 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 732 event pairs, 6 based on Foata normal form. 22/227 useless extension candidates. Maximal degree in co-relation 402. Up to 37 conditions per place. [2022-11-21 16:15:00,736 INFO L137 encePairwiseOnDemand]: 81/88 looper letters, 16 selfloop transitions, 2 changer transitions 12/93 dead transitions. [2022-11-21 16:15:00,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 93 transitions, 358 flow [2022-11-21 16:15:00,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:15:00,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-21 16:15:00,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 596 transitions. [2022-11-21 16:15:00,739 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8465909090909091 [2022-11-21 16:15:00,739 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 596 transitions. [2022-11-21 16:15:00,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 596 transitions. [2022-11-21 16:15:00,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:15:00,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 596 transitions. [2022-11-21 16:15:00,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 74.5) internal successors, (596), 8 states have internal predecessors, (596), 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) [2022-11-21 16:15:00,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 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) [2022-11-21 16:15:00,746 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 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) [2022-11-21 16:15:00,746 INFO L175 Difference]: Start difference. First operand has 115 places, 88 transitions, 292 flow. Second operand 8 states and 596 transitions. [2022-11-21 16:15:00,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 93 transitions, 358 flow [2022-11-21 16:15:00,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 93 transitions, 314 flow, removed 3 selfloop flow, removed 12 redundant places. [2022-11-21 16:15:00,750 INFO L231 Difference]: Finished difference. Result has 105 places, 81 transitions, 217 flow [2022-11-21 16:15:00,751 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=217, PETRI_PLACES=105, PETRI_TRANSITIONS=81} [2022-11-21 16:15:00,752 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 18 predicate places. [2022-11-21 16:15:00,752 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 81 transitions, 217 flow [2022-11-21 16:15:00,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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) [2022-11-21 16:15:00,753 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:15:00,753 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] [2022-11-21 16:15:00,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:15:00,754 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-21 16:15:00,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:00,754 INFO L85 PathProgramCache]: Analyzing trace with hash 143955149, now seen corresponding path program 1 times [2022-11-21 16:15:00,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:00,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120081729] [2022-11-21 16:15:00,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:00,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:00,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:15:00,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:00,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120081729] [2022-11-21 16:15:00,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120081729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:00,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:00,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:15:00,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697324892] [2022-11-21 16:15:00,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:00,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:15:00,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:00,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:15:00,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:15:00,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 88 [2022-11-21 16:15:00,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 81 transitions, 217 flow. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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) [2022-11-21 16:15:00,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:15:00,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 88 [2022-11-21 16:15:00,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:15:00,983 INFO L130 PetriNetUnfolder]: 12/199 cut-off events. [2022-11-21 16:15:00,984 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-21 16:15:00,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 199 events. 12/199 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 687 event pairs, 0 based on Foata normal form. 4/203 useless extension candidates. Maximal degree in co-relation 292. Up to 16 conditions per place. [2022-11-21 16:15:00,985 INFO L137 encePairwiseOnDemand]: 81/88 looper letters, 0 selfloop transitions, 0 changer transitions 82/82 dead transitions. [2022-11-21 16:15:00,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 82 transitions, 255 flow [2022-11-21 16:15:00,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:15:00,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-21 16:15:00,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 588 transitions. [2022-11-21 16:15:00,990 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8352272727272727 [2022-11-21 16:15:00,990 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 588 transitions. [2022-11-21 16:15:00,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 588 transitions. [2022-11-21 16:15:00,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:15:00,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 588 transitions. [2022-11-21 16:15:00,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 73.5) internal successors, (588), 8 states have internal predecessors, (588), 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) [2022-11-21 16:15:00,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 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) [2022-11-21 16:15:00,999 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 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) [2022-11-21 16:15:01,000 INFO L175 Difference]: Start difference. First operand has 105 places, 81 transitions, 217 flow. Second operand 8 states and 588 transitions. [2022-11-21 16:15:01,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 82 transitions, 255 flow [2022-11-21 16:15:01,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 82 transitions, 241 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-11-21 16:15:01,002 INFO L231 Difference]: Finished difference. Result has 95 places, 0 transitions, 0 flow [2022-11-21 16:15:01,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=95, PETRI_TRANSITIONS=0} [2022-11-21 16:15:01,004 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 8 predicate places. [2022-11-21 16:15:01,005 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 0 transitions, 0 flow [2022-11-21 16:15:01,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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) [2022-11-21 16:15:01,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-11-21 16:15:01,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-11-21 16:15:01,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-11-21 16:15:01,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-11-21 16:15:01,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-11-21 16:15:01,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-11-21 16:15:01,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-11-21 16:15:01,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-11-21 16:15:01,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2022-11-21 16:15:01,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-11-21 16:15:01,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-11-21 16:15:01,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-11-21 16:15:01,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-11-21 16:15:01,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:15:01,017 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:15:01,026 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:15:01,026 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:15:01,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:15:01 BasicIcfg [2022-11-21 16:15:01,036 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:15:01,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:15:01,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:15:01,037 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:15:01,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:14:55" (3/4) ... [2022-11-21 16:15:01,042 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:15:01,050 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-21 16:15:01,057 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-21 16:15:01,058 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 16:15:01,058 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:15:01,108 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:15:01,109 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:15:01,110 INFO L158 Benchmark]: Toolchain (without parser) took 7089.42ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 149.7MB in the beginning and 128.2MB in the end (delta: 21.5MB). Peak memory consumption was 59.9MB. Max. memory is 16.1GB. [2022-11-21 16:15:01,110 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:15:01,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 926.35ms. Allocated memory is still 180.4MB. Free memory was 149.7MB in the beginning and 122.3MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-21 16:15:01,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.11ms. Allocated memory is still 180.4MB. Free memory was 122.3MB in the beginning and 120.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:15:01,111 INFO L158 Benchmark]: Boogie Preprocessor took 33.46ms. Allocated memory is still 180.4MB. Free memory was 120.3MB in the beginning and 118.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:15:01,112 INFO L158 Benchmark]: RCFGBuilder took 605.86ms. Allocated memory is still 180.4MB. Free memory was 118.8MB in the beginning and 105.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 16:15:01,112 INFO L158 Benchmark]: TraceAbstraction took 5365.59ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 104.5MB in the beginning and 130.3MB in the end (delta: -25.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-11-21 16:15:01,113 INFO L158 Benchmark]: Witness Printer took 72.68ms. Allocated memory is still 218.1MB. Free memory was 130.3MB in the beginning and 128.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:15:01,115 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 132.1MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 926.35ms. Allocated memory is still 180.4MB. Free memory was 149.7MB in the beginning and 122.3MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.11ms. Allocated memory is still 180.4MB. Free memory was 122.3MB in the beginning and 120.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.46ms. Allocated memory is still 180.4MB. Free memory was 120.3MB in the beginning and 118.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 605.86ms. Allocated memory is still 180.4MB. Free memory was 118.8MB in the beginning and 105.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5365.59ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 104.5MB in the beginning and 130.3MB in the end (delta: -25.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Witness Printer took 72.68ms. Allocated memory is still 218.1MB. Free memory was 130.3MB in the beginning and 128.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 947]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 949]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 951]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: 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 3 procedures, 100 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 300 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 300 mSDsluCounter, 341 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 194 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 563 IncrementalHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 147 mSDtfsCounter, 563 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=483occurred in iteration=12, InterpolantAutomatonStates: 103, 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, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 608 NumberOfCodeBlocks, 608 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 593 ConstructedInterpolants, 0 QuantifiedInterpolants, 1333 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:15:01,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d85062-35e9-4146-a7e8-ac2ec6deea86/bin/uautomizer-vX5HgA9Q3a/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