./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix013.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix013.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39bd8ca48891731a487992488872bfabe93c299f5e64a0d2d763ed7464a4fc31 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:01:32,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:01:32,820 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-21 19:01:32,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:01:32,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:01:32,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:01:32,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:01:32,873 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:01:32,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:01:32,874 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:01:32,874 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:01:32,882 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:01:32,883 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:01:32,888 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:01:32,888 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:01:32,889 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:01:32,890 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:01:32,891 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:01:32,893 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:01:32,893 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:01:32,894 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:01:32,894 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:01:32,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:01:32,896 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:01:32,896 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:01:32,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:01:32,897 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:01:32,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:01:32,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:01:32,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:01:32,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:01:32,900 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 19:01:32,900 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:01:32,901 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:01:32,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:01:32,901 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:01:32,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:01:32,902 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:01:32,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:01:32,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:01:32,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:01:32,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:01:32,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:01:32,903 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:01:32,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:01:32,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:01:32,904 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:01:32,905 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:01:32,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:01:32,905 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39bd8ca48891731a487992488872bfabe93c299f5e64a0d2d763ed7464a4fc31 [2023-11-21 19:01:33,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:01:33,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:01:33,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:01:33,218 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:01:33,219 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:01:33,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/pthread-wmm/mix013.oepc.i [2023-11-21 19:01:36,380 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:01:36,736 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:01:36,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/sv-benchmarks/c/pthread-wmm/mix013.oepc.i [2023-11-21 19:01:36,772 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/data/563045ad1/8e7e09d5b738485697f129b416882e82/FLAGcda1ac8b5 [2023-11-21 19:01:36,789 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/data/563045ad1/8e7e09d5b738485697f129b416882e82 [2023-11-21 19:01:36,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:01:36,793 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:01:36,795 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:01:36,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:01:36,801 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:01:36,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:01:36" (1/1) ... [2023-11-21 19:01:36,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3185854d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:36, skipping insertion in model container [2023-11-21 19:01:36,803 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:01:36" (1/1) ... [2023-11-21 19:01:36,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:01:37,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:01:37,477 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:01:37,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:01:37,627 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:01:37,627 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:01:37,636 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:01:37,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37 WrapperNode [2023-11-21 19:01:37,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:01:37,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:01:37,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:01:37,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:01:37,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37" (1/1) ... [2023-11-21 19:01:37,688 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37" (1/1) ... [2023-11-21 19:01:37,722 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 154 [2023-11-21 19:01:37,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:01:37,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:01:37,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:01:37,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:01:37,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37" (1/1) ... [2023-11-21 19:01:37,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37" (1/1) ... [2023-11-21 19:01:37,739 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37" (1/1) ... [2023-11-21 19:01:37,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37" (1/1) ... [2023-11-21 19:01:37,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37" (1/1) ... [2023-11-21 19:01:37,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37" (1/1) ... [2023-11-21 19:01:37,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37" (1/1) ... [2023-11-21 19:01:37,759 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37" (1/1) ... [2023-11-21 19:01:37,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:01:37,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:01:37,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:01:37,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:01:37,767 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37" (1/1) ... [2023-11-21 19:01:37,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:01:37,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:01:37,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:01:37,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:01:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:01:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 19:01:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:01:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:01:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:01:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 19:01:37,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 19:01:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 19:01:37,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 19:01:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-21 19:01:37,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-21 19:01:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-21 19:01:37,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-21 19:01:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:01:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 19:01:37,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:01:37,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:01:37,883 WARN L212 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 19:01:38,031 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:01:38,034 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:01:38,552 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:01:38,853 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:01:38,853 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:01:38,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:01:38 BoogieIcfgContainer [2023-11-21 19:01:38,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:01:38,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:01:38,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:01:38,861 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:01:38,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:01:36" (1/3) ... [2023-11-21 19:01:38,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34dfa99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:01:38, skipping insertion in model container [2023-11-21 19:01:38,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:01:37" (2/3) ... [2023-11-21 19:01:38,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34dfa99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:01:38, skipping insertion in model container [2023-11-21 19:01:38,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:01:38" (3/3) ... [2023-11-21 19:01:38,865 INFO L112 eAbstractionObserver]: Analyzing ICFG mix013.oepc.i [2023-11-21 19:01:38,876 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 19:01:38,887 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:01:38,887 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-21 19:01:38,888 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 19:01:38,960 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 19:01:39,003 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 65 places, 52 transitions, 120 flow [2023-11-21 19:01:42,590 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 58408 states, 58328 states have (on average 4.413180633657935) internal successors, (257412), 58407 states have internal predecessors, (257412), 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) [2023-11-21 19:01:42,632 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:01:42,653 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3f3950b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:01:42,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-21 19:01:43,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 58408 states, 58328 states have (on average 4.413180633657935) internal successors, (257412), 58407 states have internal predecessors, (257412), 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) [2023-11-21 19:01:43,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 19:01:43,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:01:43,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:01:43,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-21 19:01:43,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:01:43,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1074046587, now seen corresponding path program 1 times [2023-11-21 19:01:43,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:01:43,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764060632] [2023-11-21 19:01:43,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:01:43,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:01:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:01:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:01:43,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:01:43,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764060632] [2023-11-21 19:01:43,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764060632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:01:43,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:01:43,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 19:01:43,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154670968] [2023-11-21 19:01:43,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:01:43,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:01:43,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:01:43,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:01:43,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:01:43,849 INFO L87 Difference]: Start difference. First operand has 58408 states, 58328 states have (on average 4.413180633657935) internal successors, (257412), 58407 states have internal predecessors, (257412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-21 19:01:45,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:01:45,364 INFO L93 Difference]: Finished difference Result 42216 states and 179288 transitions. [2023-11-21 19:01:45,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:01:45,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-21 19:01:45,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:01:46,177 INFO L225 Difference]: With dead ends: 42216 [2023-11-21 19:01:46,178 INFO L226 Difference]: Without dead ends: 42216 [2023-11-21 19:01:46,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:01:46,189 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 26 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:01:46,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 26 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:01:46,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42216 states. [2023-11-21 19:01:48,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42216 to 42216. [2023-11-21 19:01:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42216 states, 42152 states have (on average 4.25336876067565) internal successors, (179288), 42215 states have internal predecessors, (179288), 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) [2023-11-21 19:01:49,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42216 states to 42216 states and 179288 transitions. [2023-11-21 19:01:49,418 INFO L78 Accepts]: Start accepts. Automaton has 42216 states and 179288 transitions. Word has length 7 [2023-11-21 19:01:49,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:01:49,419 INFO L495 AbstractCegarLoop]: Abstraction has 42216 states and 179288 transitions. [2023-11-21 19:01:49,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-21 19:01:49,419 INFO L276 IsEmpty]: Start isEmpty. Operand 42216 states and 179288 transitions. [2023-11-21 19:01:49,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 19:01:49,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:01:49,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:01:49,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:01:49,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-21 19:01:49,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:01:49,432 INFO L85 PathProgramCache]: Analyzing trace with hash -406667885, now seen corresponding path program 1 times [2023-11-21 19:01:49,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:01:49,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782501636] [2023-11-21 19:01:49,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:01:49,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:01:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:01:49,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:01:49,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:01:49,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782501636] [2023-11-21 19:01:49,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782501636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:01:49,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:01:49,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:01:49,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050872503] [2023-11-21 19:01:49,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:01:49,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:01:49,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:01:49,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:01:49,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:01:49,598 INFO L87 Difference]: Start difference. First operand 42216 states and 179288 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-21 19:01:50,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:01:50,720 INFO L93 Difference]: Finished difference Result 31212 states and 132930 transitions. [2023-11-21 19:01:50,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:01:50,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-21 19:01:50,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:01:51,001 INFO L225 Difference]: With dead ends: 31212 [2023-11-21 19:01:51,002 INFO L226 Difference]: Without dead ends: 31212 [2023-11-21 19:01:51,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:01:51,009 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 57 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:01:51,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 52 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:01:51,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31212 states. [2023-11-21 19:01:52,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31212 to 31212. [2023-11-21 19:01:52,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31212 states, 31198 states have (on average 4.260850054490673) internal successors, (132930), 31211 states have internal predecessors, (132930), 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) [2023-11-21 19:01:53,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31212 states to 31212 states and 132930 transitions. [2023-11-21 19:01:53,540 INFO L78 Accepts]: Start accepts. Automaton has 31212 states and 132930 transitions. Word has length 15 [2023-11-21 19:01:53,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:01:53,542 INFO L495 AbstractCegarLoop]: Abstraction has 31212 states and 132930 transitions. [2023-11-21 19:01:53,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-21 19:01:53,542 INFO L276 IsEmpty]: Start isEmpty. Operand 31212 states and 132930 transitions. [2023-11-21 19:01:53,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 19:01:53,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:01:53,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:01:53,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:01:53,552 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-21 19:01:53,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:01:53,552 INFO L85 PathProgramCache]: Analyzing trace with hash -406667884, now seen corresponding path program 1 times [2023-11-21 19:01:53,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:01:53,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044151858] [2023-11-21 19:01:53,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:01:53,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:01:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:01:53,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:01:53,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:01:53,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044151858] [2023-11-21 19:01:53,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044151858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:01:53,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:01:53,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:01:53,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86606293] [2023-11-21 19:01:53,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:01:53,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:01:53,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:01:53,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:01:53,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:01:53,777 INFO L87 Difference]: Start difference. First operand 31212 states and 132930 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-21 19:01:54,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:01:54,588 INFO L93 Difference]: Finished difference Result 25016 states and 106068 transitions. [2023-11-21 19:01:54,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:01:54,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-21 19:01:54,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:01:54,748 INFO L225 Difference]: With dead ends: 25016 [2023-11-21 19:01:54,748 INFO L226 Difference]: Without dead ends: 25016 [2023-11-21 19:01:54,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:01:54,757 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 72 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:01:54,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 39 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:01:54,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25016 states. [2023-11-21 19:01:55,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25016 to 25016. [2023-11-21 19:01:55,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25016 states, 25006 states have (on average 4.241701991522035) internal successors, (106068), 25015 states have internal predecessors, (106068), 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) [2023-11-21 19:01:56,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25016 states to 25016 states and 106068 transitions. [2023-11-21 19:01:56,256 INFO L78 Accepts]: Start accepts. Automaton has 25016 states and 106068 transitions. Word has length 15 [2023-11-21 19:01:56,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:01:56,256 INFO L495 AbstractCegarLoop]: Abstraction has 25016 states and 106068 transitions. [2023-11-21 19:01:56,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-21 19:01:56,257 INFO L276 IsEmpty]: Start isEmpty. Operand 25016 states and 106068 transitions. [2023-11-21 19:01:56,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 19:01:56,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:01:56,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:01:56,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:01:56,314 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-21 19:01:56,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:01:56,315 INFO L85 PathProgramCache]: Analyzing trace with hash 882325034, now seen corresponding path program 1 times [2023-11-21 19:01:56,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:01:56,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190591880] [2023-11-21 19:01:56,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:01:56,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:01:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:01:56,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:01:56,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:01:56,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190591880] [2023-11-21 19:01:56,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190591880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:01:56,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:01:56,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:01:56,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950144540] [2023-11-21 19:01:56,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:01:56,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 19:01:56,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:01:56,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 19:01:56,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:01:56,537 INFO L87 Difference]: Start difference. First operand 25016 states and 106068 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-11-21 19:01:57,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:01:57,016 INFO L93 Difference]: Finished difference Result 22976 states and 98220 transitions. [2023-11-21 19:01:57,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:01:57,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-21 19:01:57,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:01:57,161 INFO L225 Difference]: With dead ends: 22976 [2023-11-21 19:01:57,162 INFO L226 Difference]: Without dead ends: 22976 [2023-11-21 19:01:57,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:01:57,163 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 101 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:01:57,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 52 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:01:57,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22976 states. [2023-11-21 19:01:58,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22976 to 22976. [2023-11-21 19:01:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22976 states, 22972 states have (on average 4.275639909454989) internal successors, (98220), 22975 states have internal predecessors, (98220), 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) [2023-11-21 19:01:58,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22976 states to 22976 states and 98220 transitions. [2023-11-21 19:01:58,453 INFO L78 Accepts]: Start accepts. Automaton has 22976 states and 98220 transitions. Word has length 22 [2023-11-21 19:01:58,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:01:58,454 INFO L495 AbstractCegarLoop]: Abstraction has 22976 states and 98220 transitions. [2023-11-21 19:01:58,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-11-21 19:01:58,454 INFO L276 IsEmpty]: Start isEmpty. Operand 22976 states and 98220 transitions. [2023-11-21 19:01:58,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 19:01:58,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:01:58,530 INFO L195 NwaCegarLoop]: 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] [2023-11-21 19:01:58,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 19:01:58,530 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-21 19:01:58,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:01:58,531 INFO L85 PathProgramCache]: Analyzing trace with hash 758566326, now seen corresponding path program 1 times [2023-11-21 19:01:58,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:01:58,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557683252] [2023-11-21 19:01:58,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:01:58,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:01:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:01:58,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:01:58,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:01:58,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557683252] [2023-11-21 19:01:58,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557683252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:01:58,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:01:58,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 19:01:58,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120825370] [2023-11-21 19:01:58,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:01:58,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:01:58,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:01:58,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:01:58,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:01:58,762 INFO L87 Difference]: Start difference. First operand 22976 states and 98220 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2023-11-21 19:01:59,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:01:59,147 INFO L93 Difference]: Finished difference Result 22752 states and 97468 transitions. [2023-11-21 19:01:59,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:01:59,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-21 19:01:59,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:01:59,149 INFO L225 Difference]: With dead ends: 22752 [2023-11-21 19:01:59,149 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 19:01:59,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:01:59,150 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 190 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:01:59,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 52 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:01:59,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 19:01:59,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 19:01:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-11-21 19:01:59,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 19:01:59,152 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2023-11-21 19:01:59,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:01:59,152 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 19:01:59,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2023-11-21 19:01:59,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 19:01:59,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 19:01:59,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-21 19:01:59,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-21 19:01:59,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-21 19:01:59,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-21 19:01:59,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-21 19:01:59,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-21 19:01:59,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-21 19:01:59,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-21 19:01:59,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-21 19:01:59,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-21 19:01:59,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-21 19:01:59,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-21 19:01:59,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-21 19:01:59,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-21 19:01:59,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-21 19:01:59,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-21 19:01:59,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-21 19:01:59,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-21 19:01:59,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-21 19:01:59,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-21 19:01:59,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 19:01:59,167 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-21 19:01:59,172 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 19:01:59,172 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:01:59,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:01:59 BasicIcfg [2023-11-21 19:01:59,180 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:01:59,181 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:01:59,181 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:01:59,181 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:01:59,182 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:01:38" (3/4) ... [2023-11-21 19:01:59,183 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 19:01:59,186 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-21 19:01:59,186 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-21 19:01:59,187 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-21 19:01:59,187 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-21 19:01:59,196 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 91 nodes and edges [2023-11-21 19:01:59,197 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-21 19:01:59,197 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 19:01:59,197 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 19:01:59,312 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/witness.graphml [2023-11-21 19:01:59,312 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/witness.yml [2023-11-21 19:01:59,312 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:01:59,313 INFO L158 Benchmark]: Toolchain (without parser) took 22520.17ms. Allocated memory was 140.5MB in the beginning and 9.3GB in the end (delta: 9.2GB). Free memory was 110.3MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2023-11-21 19:01:59,313 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:01:59,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 842.31ms. Allocated memory is still 140.5MB. Free memory was 110.3MB in the beginning and 85.6MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-21 19:01:59,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.33ms. Allocated memory is still 140.5MB. Free memory was 85.6MB in the beginning and 83.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:01:59,315 INFO L158 Benchmark]: Boogie Preprocessor took 40.87ms. Allocated memory is still 140.5MB. Free memory was 83.0MB in the beginning and 80.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:01:59,315 INFO L158 Benchmark]: RCFGBuilder took 1089.61ms. Allocated memory is still 140.5MB. Free memory was 80.9MB in the beginning and 74.9MB in the end (delta: 6.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-21 19:01:59,315 INFO L158 Benchmark]: TraceAbstraction took 20322.56ms. Allocated memory was 140.5MB in the beginning and 9.3GB in the end (delta: 9.2GB). Free memory was 73.6MB in the beginning and 7.9GB in the end (delta: -7.9GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2023-11-21 19:01:59,316 INFO L158 Benchmark]: Witness Printer took 131.64ms. Allocated memory is still 9.3GB. Free memory was 7.9GB in the beginning and 7.9GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 19:01:59,318 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 842.31ms. Allocated memory is still 140.5MB. Free memory was 110.3MB in the beginning and 85.6MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.33ms. Allocated memory is still 140.5MB. Free memory was 85.6MB in the beginning and 83.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.87ms. Allocated memory is still 140.5MB. Free memory was 83.0MB in the beginning and 80.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1089.61ms. Allocated memory is still 140.5MB. Free memory was 80.9MB in the beginning and 74.9MB in the end (delta: 6.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 20322.56ms. Allocated memory was 140.5MB in the beginning and 9.3GB in the end (delta: 9.2GB). Free memory was 73.6MB in the beginning and 7.9GB in the end (delta: -7.9GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 131.64ms. Allocated memory is still 9.3GB. Free memory was 7.9GB in the beginning and 7.9GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 858]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 858]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 95 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 20.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 446 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 446 mSDsluCounter, 221 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 143 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 459 IncrementalHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 78 mSDtfsCounter, 459 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58408occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 19:01:59,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a5e1a84-8505-48e6-b3c5-0d755d346469/bin/utaipan-verify-QoSU8krkJ5/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