./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe025_rmo.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe025_rmo.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 245f8deca690daafc67ff44dd7680fe4934c4e890117db34905ca3a31fc7577b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:49:11,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:49:11,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:49:11,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:49:11,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:49:11,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:49:11,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:49:11,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:49:11,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:49:11,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:49:11,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:49:11,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:49:11,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:49:11,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:49:11,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:49:11,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:49:11,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:49:11,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:49:11,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:49:11,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:49:11,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:49:11,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:49:11,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:49:11,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:49:11,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:49:11,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:49:11,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:49:11,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:49:11,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:49:11,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:49:11,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:49:11,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:49:11,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:49:11,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:49:11,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:49:11,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:49:11,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:49:11,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:49:11,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:49:11,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:49:11,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:49:11,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:49:11,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:49:11,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:49:11,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:49:11,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:49:11,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:49:11,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:49:11,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:49:11,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:49:11,897 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:49:11,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:49:11,898 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:49:11,899 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:49:11,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:49:11,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:49:11,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:49:11,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:49:11,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:49:11,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:49:11,901 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:49:11,901 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:49:11,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:49:11,901 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:49:11,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:49:11,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:49:11,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:49:11,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:49:11,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:49:11,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:49:11,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:49:11,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:49:11,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:49:11,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:49:11,906 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:49:11,907 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:49:11,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:49:11,907 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_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 245f8deca690daafc67ff44dd7680fe4934c4e890117db34905ca3a31fc7577b [2022-11-16 11:49:12,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:49:12,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:49:12,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:49:12,365 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:49:12,366 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:49:12,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/safe025_rmo.i [2022-11-16 11:49:12,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/data/dfaf15262/e76be3ec01c14ce4bb929499a81a9e01/FLAG2774ad87d [2022-11-16 11:49:13,227 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:49:13,228 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/sv-benchmarks/c/pthread-wmm/safe025_rmo.i [2022-11-16 11:49:13,254 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/data/dfaf15262/e76be3ec01c14ce4bb929499a81a9e01/FLAG2774ad87d [2022-11-16 11:49:13,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/data/dfaf15262/e76be3ec01c14ce4bb929499a81a9e01 [2022-11-16 11:49:13,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:49:13,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:49:13,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:49:13,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:49:13,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:49:13,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:49:13" (1/1) ... [2022-11-16 11:49:13,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eac6284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:13, skipping insertion in model container [2022-11-16 11:49:13,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:49:13" (1/1) ... [2022-11-16 11:49:13,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:49:13,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:49:13,807 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/sv-benchmarks/c/pthread-wmm/safe025_rmo.i[988,1001] [2022-11-16 11:49:14,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:49:14,082 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:49:14,096 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/sv-benchmarks/c/pthread-wmm/safe025_rmo.i[988,1001] [2022-11-16 11:49:14,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:49:14,274 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:49:14,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14 WrapperNode [2022-11-16 11:49:14,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:49:14,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:49:14,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:49:14,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:49:14,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14" (1/1) ... [2022-11-16 11:49:14,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14" (1/1) ... [2022-11-16 11:49:14,391 INFO L138 Inliner]: procedures = 176, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 167 [2022-11-16 11:49:14,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:49:14,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:49:14,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:49:14,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:49:14,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14" (1/1) ... [2022-11-16 11:49:14,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14" (1/1) ... [2022-11-16 11:49:14,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14" (1/1) ... [2022-11-16 11:49:14,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14" (1/1) ... [2022-11-16 11:49:14,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14" (1/1) ... [2022-11-16 11:49:14,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14" (1/1) ... [2022-11-16 11:49:14,443 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14" (1/1) ... [2022-11-16 11:49:14,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14" (1/1) ... [2022-11-16 11:49:14,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:49:14,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:49:14,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:49:14,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:49:14,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14" (1/1) ... [2022-11-16 11:49:14,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:49:14,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:49:14,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:49:14,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:49:14,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:49:14,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:49:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:49:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:49:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:49:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:49:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 11:49:14,560 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 11:49:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 11:49:14,560 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 11:49:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 11:49:14,560 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 11:49:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:49:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:49:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:49:14,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:49:14,563 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:49:14,859 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:49:14,862 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:49:15,610 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:49:16,100 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:49:16,100 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:49:16,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:49:16 BoogieIcfgContainer [2022-11-16 11:49:16,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:49:16,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:49:16,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:49:16,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:49:16,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:49:13" (1/3) ... [2022-11-16 11:49:16,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540c14b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:49:16, skipping insertion in model container [2022-11-16 11:49:16,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:14" (2/3) ... [2022-11-16 11:49:16,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540c14b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:49:16, skipping insertion in model container [2022-11-16 11:49:16,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:49:16" (3/3) ... [2022-11-16 11:49:16,120 INFO L112 eAbstractionObserver]: Analyzing ICFG safe025_rmo.i [2022-11-16 11:49:16,131 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:49:16,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:49:16,144 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 11:49:16,145 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:49:16,290 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:49:16,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 137 transitions, 289 flow [2022-11-16 11:49:16,429 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2022-11-16 11:49:16,430 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:49:16,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-11-16 11:49:16,436 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 137 transitions, 289 flow [2022-11-16 11:49:16,442 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 134 transitions, 277 flow [2022-11-16 11:49:16,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:49:16,463 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;@52533842, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:49:16,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-16 11:49:16,482 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-11-16 11:49:16,482 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:49:16,483 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:16,483 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:16,484 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:49:16,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:16,491 INFO L85 PathProgramCache]: Analyzing trace with hash -784236278, now seen corresponding path program 1 times [2022-11-16 11:49:16,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:16,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583413323] [2022-11-16 11:49:16,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:16,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:17,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:17,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:17,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583413323] [2022-11-16 11:49:17,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583413323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:17,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:17,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:49:17,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060506056] [2022-11-16 11:49:17,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:17,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:49:17,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:17,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:49:17,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:49:17,163 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 137 [2022-11-16 11:49:17,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 134 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:17,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:17,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 137 [2022-11-16 11:49:17,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:18,221 INFO L130 PetriNetUnfolder]: 581/2564 cut-off events. [2022-11-16 11:49:18,222 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-16 11:49:18,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3529 conditions, 2564 events. 581/2564 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 23222 event pairs, 393 based on Foata normal form. 134/2322 useless extension candidates. Maximal degree in co-relation 3458. Up to 798 conditions per place. [2022-11-16 11:49:18,248 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 28 selfloop transitions, 4 changer transitions 0/143 dead transitions. [2022-11-16 11:49:18,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 143 transitions, 365 flow [2022-11-16 11:49:18,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:49:18,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:49:18,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2022-11-16 11:49:18,262 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9343065693430657 [2022-11-16 11:49:18,263 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2022-11-16 11:49:18,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2022-11-16 11:49:18,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:18,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2022-11-16 11:49:18,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:18,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:18,278 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:18,280 INFO L175 Difference]: Start difference. First operand has 142 places, 134 transitions, 277 flow. Second operand 3 states and 384 transitions. [2022-11-16 11:49:18,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 143 transitions, 365 flow [2022-11-16 11:49:18,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 143 transitions, 360 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:49:18,288 INFO L231 Difference]: Finished difference. Result has 141 places, 134 transitions, 304 flow [2022-11-16 11:49:18,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=304, PETRI_PLACES=141, PETRI_TRANSITIONS=134} [2022-11-16 11:49:18,294 INFO L288 CegarLoopForPetriNet]: 142 programPoint places, -1 predicate places. [2022-11-16 11:49:18,294 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 134 transitions, 304 flow [2022-11-16 11:49:18,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:18,295 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:18,295 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:18,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:49:18,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:49:18,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:18,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1234595541, now seen corresponding path program 1 times [2022-11-16 11:49:18,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:18,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098847119] [2022-11-16 11:49:18,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:18,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:18,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:18,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098847119] [2022-11-16 11:49:18,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098847119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:18,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:18,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:49:18,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809405395] [2022-11-16 11:49:18,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:18,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:49:18,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:18,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:49:18,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:49:18,643 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 137 [2022-11-16 11:49:18,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 134 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:18,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:18,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 137 [2022-11-16 11:49:18,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:19,317 INFO L130 PetriNetUnfolder]: 415/1756 cut-off events. [2022-11-16 11:49:19,317 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-11-16 11:49:19,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2807 conditions, 1756 events. 415/1756 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 14060 event pairs, 199 based on Foata normal form. 0/1560 useless extension candidates. Maximal degree in co-relation 2736. Up to 384 conditions per place. [2022-11-16 11:49:19,333 INFO L137 encePairwiseOnDemand]: 127/137 looper letters, 33 selfloop transitions, 10 changer transitions 3/157 dead transitions. [2022-11-16 11:49:19,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 157 transitions, 460 flow [2022-11-16 11:49:19,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:49:19,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:49:19,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 505 transitions. [2022-11-16 11:49:19,337 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9215328467153284 [2022-11-16 11:49:19,337 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 505 transitions. [2022-11-16 11:49:19,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 505 transitions. [2022-11-16 11:49:19,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:19,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 505 transitions. [2022-11-16 11:49:19,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:19,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:19,342 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:19,342 INFO L175 Difference]: Start difference. First operand has 141 places, 134 transitions, 304 flow. Second operand 4 states and 505 transitions. [2022-11-16 11:49:19,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 157 transitions, 460 flow [2022-11-16 11:49:19,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 157 transitions, 456 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:49:19,348 INFO L231 Difference]: Finished difference. Result has 145 places, 137 transitions, 360 flow [2022-11-16 11:49:19,348 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=145, PETRI_TRANSITIONS=137} [2022-11-16 11:49:19,349 INFO L288 CegarLoopForPetriNet]: 142 programPoint places, 3 predicate places. [2022-11-16 11:49:19,349 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 137 transitions, 360 flow [2022-11-16 11:49:19,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:19,350 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:19,350 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:19,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:49:19,350 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:49:19,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:19,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1234595540, now seen corresponding path program 1 times [2022-11-16 11:49:19,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:19,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322614368] [2022-11-16 11:49:19,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:19,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:19,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:19,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:19,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322614368] [2022-11-16 11:49:19,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322614368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:19,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:19,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:49:19,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581581685] [2022-11-16 11:49:19,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:19,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:49:19,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:19,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:49:19,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:49:19,629 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 137 [2022-11-16 11:49:19,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 137 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:19,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:19,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 137 [2022-11-16 11:49:19,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:20,086 INFO L130 PetriNetUnfolder]: 277/938 cut-off events. [2022-11-16 11:49:20,087 INFO L131 PetriNetUnfolder]: For 449/449 co-relation queries the response was YES. [2022-11-16 11:49:20,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 938 events. 277/938 cut-off events. For 449/449 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5919 event pairs, 74 based on Foata normal form. 70/978 useless extension candidates. Maximal degree in co-relation 1676. Up to 313 conditions per place. [2022-11-16 11:49:20,098 INFO L137 encePairwiseOnDemand]: 130/137 looper letters, 25 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2022-11-16 11:49:20,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 140 transitions, 398 flow [2022-11-16 11:49:20,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:49:20,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:49:20,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 488 transitions. [2022-11-16 11:49:20,101 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8905109489051095 [2022-11-16 11:49:20,101 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 488 transitions. [2022-11-16 11:49:20,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 488 transitions. [2022-11-16 11:49:20,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:20,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 488 transitions. [2022-11-16 11:49:20,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:20,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:20,107 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:20,107 INFO L175 Difference]: Start difference. First operand has 145 places, 137 transitions, 360 flow. Second operand 4 states and 488 transitions. [2022-11-16 11:49:20,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 140 transitions, 398 flow [2022-11-16 11:49:20,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 140 transitions, 380 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-16 11:49:20,120 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 308 flow [2022-11-16 11:49:20,121 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=308, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2022-11-16 11:49:20,124 INFO L288 CegarLoopForPetriNet]: 142 programPoint places, 0 predicate places. [2022-11-16 11:49:20,124 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 308 flow [2022-11-16 11:49:20,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:20,125 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:20,126 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:20,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:49:20,127 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 11:49:20,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:20,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1377833560, now seen corresponding path program 1 times [2022-11-16 11:49:20,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:20,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444814966] [2022-11-16 11:49:20,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:20,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:20,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:20,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444814966] [2022-11-16 11:49:20,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444814966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:20,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:20,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:49:20,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444059612] [2022-11-16 11:49:20,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:20,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:49:20,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:20,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:49:20,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:49:20,591 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 137 [2022-11-16 11:49:20,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 308 flow. Second operand has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:20,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:20,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 137 [2022-11-16 11:49:20,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:21,038 INFO L130 PetriNetUnfolder]: 268/1123 cut-off events. [2022-11-16 11:49:21,039 INFO L131 PetriNetUnfolder]: For 377/377 co-relation queries the response was YES. [2022-11-16 11:49:21,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1123 events. 268/1123 cut-off events. For 377/377 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7535 event pairs, 110 based on Foata normal form. 12/1079 useless extension candidates. Maximal degree in co-relation 1769. Up to 196 conditions per place. [2022-11-16 11:49:21,044 INFO L137 encePairwiseOnDemand]: 130/137 looper letters, 0 selfloop transitions, 0 changer transitions 145/145 dead transitions. [2022-11-16 11:49:21,044 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 145 transitions, 398 flow [2022-11-16 11:49:21,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:49:21,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:49:21,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 607 transitions. [2022-11-16 11:49:21,049 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8861313868613139 [2022-11-16 11:49:21,054 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 607 transitions. [2022-11-16 11:49:21,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 607 transitions. [2022-11-16 11:49:21,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:21,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 607 transitions. [2022-11-16 11:49:21,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:21,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:21,060 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:21,060 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 308 flow. Second operand 5 states and 607 transitions. [2022-11-16 11:49:21,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 145 transitions, 398 flow [2022-11-16 11:49:21,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 145 transitions, 383 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:49:21,069 INFO L231 Difference]: Finished difference. Result has 139 places, 0 transitions, 0 flow [2022-11-16 11:49:21,069 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=139, PETRI_TRANSITIONS=0} [2022-11-16 11:49:21,071 INFO L288 CegarLoopForPetriNet]: 142 programPoint places, -3 predicate places. [2022-11-16 11:49:21,072 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 0 transitions, 0 flow [2022-11-16 11:49:21,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:21,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-16 11:49:21,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-16 11:49:21,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-16 11:49:21,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-16 11:49:21,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-16 11:49:21,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-16 11:49:21,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-16 11:49:21,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-16 11:49:21,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-16 11:49:21,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-16 11:49:21,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-16 11:49:21,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-16 11:49:21,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-16 11:49:21,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-16 11:49:21,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-16 11:49:21,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:49:21,084 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-16 11:49:21,091 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:49:21,091 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:49:21,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:49:21 BasicIcfg [2022-11-16 11:49:21,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:49:21,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:49:21,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:49:21,110 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:49:21,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:49:16" (3/4) ... [2022-11-16 11:49:21,114 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:49:21,120 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 11:49:21,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 11:49:21,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-16 11:49:21,130 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2022-11-16 11:49:21,131 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-16 11:49:21,131 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 11:49:21,132 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:49:21,215 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:49:21,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:49:21,217 INFO L158 Benchmark]: Toolchain (without parser) took 7789.19ms. Allocated memory was 115.3MB in the beginning and 201.3MB in the end (delta: 86.0MB). Free memory was 78.4MB in the beginning and 115.8MB in the end (delta: -37.4MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2022-11-16 11:49:21,217 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 81.8MB. Free memory was 56.3MB in the beginning and 56.3MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:49:21,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 839.88ms. Allocated memory is still 115.3MB. Free memory was 78.2MB in the beginning and 75.7MB in the end (delta: 2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:49:21,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.53ms. Allocated memory is still 115.3MB. Free memory was 75.7MB in the beginning and 73.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:49:21,218 INFO L158 Benchmark]: Boogie Preprocessor took 73.59ms. Allocated memory is still 115.3MB. Free memory was 73.1MB in the beginning and 70.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:49:21,219 INFO L158 Benchmark]: RCFGBuilder took 1631.07ms. Allocated memory is still 115.3MB. Free memory was 70.5MB in the beginning and 87.3MB in the end (delta: -16.8MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2022-11-16 11:49:21,219 INFO L158 Benchmark]: TraceAbstraction took 4997.70ms. Allocated memory was 115.3MB in the beginning and 201.3MB in the end (delta: 86.0MB). Free memory was 86.5MB in the beginning and 119.9MB in the end (delta: -33.4MB). Peak memory consumption was 129.6MB. Max. memory is 16.1GB. [2022-11-16 11:49:21,220 INFO L158 Benchmark]: Witness Printer took 105.90ms. Allocated memory is still 201.3MB. Free memory was 119.9MB in the beginning and 115.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:49:21,224 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 81.8MB. Free memory was 56.3MB in the beginning and 56.3MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 839.88ms. Allocated memory is still 115.3MB. Free memory was 78.2MB in the beginning and 75.7MB in the end (delta: 2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.53ms. Allocated memory is still 115.3MB. Free memory was 75.7MB in the beginning and 73.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.59ms. Allocated memory is still 115.3MB. Free memory was 73.1MB in the beginning and 70.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1631.07ms. Allocated memory is still 115.3MB. Free memory was 70.5MB in the beginning and 87.3MB in the end (delta: -16.8MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4997.70ms. Allocated memory was 115.3MB in the beginning and 201.3MB in the end (delta: 86.0MB). Free memory was 86.5MB in the beginning and 119.9MB in the end (delta: -33.4MB). Peak memory consumption was 129.6MB. Max. memory is 16.1GB. * Witness Printer took 105.90ms. Allocated memory is still 201.3MB. Free memory was 119.9MB in the beginning and 115.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: 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 7 procedures, 168 locations, 15 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: 4.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 181 IncrementalHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 10 mSDtfsCounter, 181 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=360occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 788 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:49:21,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_907863ef-ca12-4b3a-b95d-7be3991e95c7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE