./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8943650a21e052edc6a6af145da55799620df509a78c8e503eca6167eaa2f8fc --- 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-5e519f3 [2022-11-03 03:47:19,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:47:19,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:47:19,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:47:19,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:47:19,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:47:19,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:47:19,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:47:19,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:47:19,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:47:19,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:47:19,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:47:19,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:47:19,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:47:19,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:47:19,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:47:19,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:47:19,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:47:19,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:47:19,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:47:19,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:47:19,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:47:19,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:47:19,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:47:19,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:47:19,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:47:19,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:47:19,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:47:19,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:47:19,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:47:19,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:47:19,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:47:19,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:47:19,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:47:19,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:47:19,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:47:19,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:47:19,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:47:19,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:47:19,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:47:19,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:47:19,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 03:47:19,671 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:47:19,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:47:19,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:47:19,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:47:19,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:47:19,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:47:19,674 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:47:19,674 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:47:19,674 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:47:19,674 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:47:19,675 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:47:19,675 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:47:19,675 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:47:19,675 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:47:19,676 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:47:19,676 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:47:19,676 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:47:19,676 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:47:19,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:47:19,677 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:47:19,678 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 03:47:19,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:47:19,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:47:19,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:47:19,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:47:19,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:47:19,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:47:19,679 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 03:47:19,680 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:47:19,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:47:19,680 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:47:19,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:47:19,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:47:19,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:47:19,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:47:19,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:47:19,682 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:47:19,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:47:19,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:47:19,687 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:47:19,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:47:19,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:47:19,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:47:19,688 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_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8943650a21e052edc6a6af145da55799620df509a78c8e503eca6167eaa2f8fc [2022-11-03 03:47:19,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:47:19,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:47:19,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:47:19,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:47:19,995 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:47:19,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i [2022-11-03 03:47:20,073 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/data/87abdf087/d1f7b40383b14304a07947f71764a2c3/FLAGcaa8f17f9 [2022-11-03 03:47:20,726 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:47:20,727 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i [2022-11-03 03:47:20,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/data/87abdf087/d1f7b40383b14304a07947f71764a2c3/FLAGcaa8f17f9 [2022-11-03 03:47:20,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/data/87abdf087/d1f7b40383b14304a07947f71764a2c3 [2022-11-03 03:47:20,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:47:20,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:47:20,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:47:20,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:47:20,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:47:20,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:20" (1/1) ... [2022-11-03 03:47:20,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1049aa52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:20, skipping insertion in model container [2022-11-03 03:47:20,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:20" (1/1) ... [2022-11-03 03:47:20,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:47:21,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:47:21,272 WARN L230 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_3f03a4ac-4be2-4bba-a0c8-e597d955effa/sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-03 03:47:21,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:47:21,482 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:47:21,494 WARN L230 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_3f03a4ac-4be2-4bba-a0c8-e597d955effa/sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-03 03:47:21,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:47:21,577 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:47:21,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21 WrapperNode [2022-11-03 03:47:21,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:47:21,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:47:21,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:47:21,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:47:21,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21" (1/1) ... [2022-11-03 03:47:21,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21" (1/1) ... [2022-11-03 03:47:21,671 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 194 [2022-11-03 03:47:21,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:47:21,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:47:21,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:47:21,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:47:21,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21" (1/1) ... [2022-11-03 03:47:21,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21" (1/1) ... [2022-11-03 03:47:21,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21" (1/1) ... [2022-11-03 03:47:21,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21" (1/1) ... [2022-11-03 03:47:21,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21" (1/1) ... [2022-11-03 03:47:21,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21" (1/1) ... [2022-11-03 03:47:21,724 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21" (1/1) ... [2022-11-03 03:47:21,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21" (1/1) ... [2022-11-03 03:47:21,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:47:21,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:47:21,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:47:21,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:47:21,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21" (1/1) ... [2022-11-03 03:47:21,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:47:21,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:47:21,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:47:21,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:47:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:47:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 03:47:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:47:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:47:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:47:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-03 03:47:21,821 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-03 03:47:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-03 03:47:21,821 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-03 03:47:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-03 03:47:21,822 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-03 03:47:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-03 03:47:21,822 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-03 03:47:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:47:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 03:47:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:47:21,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:47:21,835 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 03:47:22,090 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:47:22,092 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:47:22,844 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:47:23,424 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:47:23,424 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:47:23,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:23 BoogieIcfgContainer [2022-11-03 03:47:23,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:47:23,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:47:23,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:47:23,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:47:23,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:47:20" (1/3) ... [2022-11-03 03:47:23,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b22e052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:23, skipping insertion in model container [2022-11-03 03:47:23,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:21" (2/3) ... [2022-11-03 03:47:23,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b22e052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:23, skipping insertion in model container [2022-11-03 03:47:23,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:23" (3/3) ... [2022-11-03 03:47:23,438 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021_power.oepc_pso.oepc_rmo.oepc.i [2022-11-03 03:47:23,448 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 03:47:23,459 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:47:23,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-03 03:47:23,461 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 03:47:23,568 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 03:47:23,634 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 03:47:23,655 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 143 transitions, 306 flow [2022-11-03 03:47:23,658 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 143 transitions, 306 flow [2022-11-03 03:47:23,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 143 transitions, 306 flow [2022-11-03 03:47:23,722 INFO L130 PetriNetUnfolder]: 2/139 cut-off events. [2022-11-03 03:47:23,722 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 03:47:23,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 2/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-11-03 03:47:23,730 INFO L118 LiptonReduction]: Number of co-enabled transitions 4298 [2022-11-03 03:47:35,464 INFO L133 LiptonReduction]: Checked pairs total: 15504 [2022-11-03 03:47:35,464 INFO L135 LiptonReduction]: Total number of compositions: 120 [2022-11-03 03:47:35,475 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 41 transitions, 102 flow [2022-11-03 03:47:36,163 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11772 states, 11692 states have (on average 4.40711597673623) internal successors, (51528), 11771 states have internal predecessors, (51528), 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) [2022-11-03 03:47:36,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:47:36,197 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=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;@2a8c4eaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:47:36,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-03 03:47:36,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 11772 states, 11692 states have (on average 4.40711597673623) internal successors, (51528), 11771 states have internal predecessors, (51528), 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) [2022-11-03 03:47:36,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 03:47:36,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:36,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 03:47:36,248 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 03:47:36,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:36,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1265454392, now seen corresponding path program 1 times [2022-11-03 03:47:36,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:36,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411949870] [2022-11-03 03:47:36,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:36,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:36,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:47:36,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:36,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411949870] [2022-11-03 03:47:36,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411949870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:36,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:47:36,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 03:47:36,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177835553] [2022-11-03 03:47:36,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:36,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:47:36,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:36,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:47:36,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:47:36,737 INFO L87 Difference]: Start difference. First operand has 11772 states, 11692 states have (on average 4.40711597673623) internal successors, (51528), 11771 states have internal predecessors, (51528), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-03 03:47:37,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:37,054 INFO L93 Difference]: Finished difference Result 6562 states and 26549 transitions. [2022-11-03 03:47:37,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:47:37,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-03 03:47:37,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:37,148 INFO L225 Difference]: With dead ends: 6562 [2022-11-03 03:47:37,148 INFO L226 Difference]: Without dead ends: 6562 [2022-11-03 03:47:37,149 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 [2022-11-03 03:47:37,152 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:37,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:47:37,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6562 states. [2022-11-03 03:47:37,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6562 to 6562. [2022-11-03 03:47:37,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6562 states, 6547 states have (on average 4.055139758668092) internal successors, (26549), 6561 states have internal predecessors, (26549), 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) [2022-11-03 03:47:37,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6562 states to 6562 states and 26549 transitions. [2022-11-03 03:47:37,705 INFO L78 Accepts]: Start accepts. Automaton has 6562 states and 26549 transitions. Word has length 5 [2022-11-03 03:47:37,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:37,706 INFO L495 AbstractCegarLoop]: Abstraction has 6562 states and 26549 transitions. [2022-11-03 03:47:37,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-03 03:47:37,707 INFO L276 IsEmpty]: Start isEmpty. Operand 6562 states and 26549 transitions. [2022-11-03 03:47:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 03:47:37,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:37,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 03:47:37,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:47:37,709 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 03:47:37,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:37,712 INFO L85 PathProgramCache]: Analyzing trace with hash 574379055, now seen corresponding path program 1 times [2022-11-03 03:47:37,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:37,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82088096] [2022-11-03 03:47:37,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:37,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:37,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:47:37,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:37,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82088096] [2022-11-03 03:47:37,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82088096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:37,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:47:37,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 03:47:37,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432090338] [2022-11-03 03:47:37,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:37,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:47:37,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:37,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:47:37,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:47:37,860 INFO L87 Difference]: Start difference. First operand 6562 states and 26549 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-03 03:47:38,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:38,153 INFO L93 Difference]: Finished difference Result 4700 states and 17833 transitions. [2022-11-03 03:47:38,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:47:38,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-03 03:47:38,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:38,210 INFO L225 Difference]: With dead ends: 4700 [2022-11-03 03:47:38,219 INFO L226 Difference]: Without dead ends: 4700 [2022-11-03 03:47:38,220 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 [2022-11-03 03:47:38,222 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 19 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:38,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 12 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:47:38,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2022-11-03 03:47:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 4700. [2022-11-03 03:47:38,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 4686 states have (on average 3.805591122492531) internal successors, (17833), 4699 states have internal predecessors, (17833), 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) [2022-11-03 03:47:38,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 17833 transitions. [2022-11-03 03:47:38,714 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 17833 transitions. Word has length 6 [2022-11-03 03:47:38,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:38,715 INFO L495 AbstractCegarLoop]: Abstraction has 4700 states and 17833 transitions. [2022-11-03 03:47:38,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-03 03:47:38,715 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 17833 transitions. [2022-11-03 03:47:38,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 03:47:38,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:38,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:47:38,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:47:38,720 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 03:47:38,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:38,721 INFO L85 PathProgramCache]: Analyzing trace with hash 583150544, now seen corresponding path program 1 times [2022-11-03 03:47:38,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:38,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551219282] [2022-11-03 03:47:38,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:38,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:47:38,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:38,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551219282] [2022-11-03 03:47:38,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551219282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:38,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:47:38,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:47:38,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121611485] [2022-11-03 03:47:38,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:38,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:47:38,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:38,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:47:38,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:47:38,874 INFO L87 Difference]: Start difference. First operand 4700 states and 17833 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-03 03:47:39,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:39,063 INFO L93 Difference]: Finished difference Result 3558 states and 13598 transitions. [2022-11-03 03:47:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:47:39,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-03 03:47:39,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:39,091 INFO L225 Difference]: With dead ends: 3558 [2022-11-03 03:47:39,091 INFO L226 Difference]: Without dead ends: 3558 [2022-11-03 03:47:39,092 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 [2022-11-03 03:47:39,093 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 41 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:39,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 16 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:47:39,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2022-11-03 03:47:39,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3558. [2022-11-03 03:47:39,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3558 states, 3548 states have (on average 3.8325817361894026) internal successors, (13598), 3557 states have internal predecessors, (13598), 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) [2022-11-03 03:47:39,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3558 states to 3558 states and 13598 transitions. [2022-11-03 03:47:39,351 INFO L78 Accepts]: Start accepts. Automaton has 3558 states and 13598 transitions. Word has length 12 [2022-11-03 03:47:39,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:39,351 INFO L495 AbstractCegarLoop]: Abstraction has 3558 states and 13598 transitions. [2022-11-03 03:47:39,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-03 03:47:39,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3558 states and 13598 transitions. [2022-11-03 03:47:39,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 03:47:39,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:39,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:47:39,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:47:39,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 03:47:39,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:39,361 INFO L85 PathProgramCache]: Analyzing trace with hash -899561892, now seen corresponding path program 1 times [2022-11-03 03:47:39,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:39,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68386169] [2022-11-03 03:47:39,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:39,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:39,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:47:39,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:39,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68386169] [2022-11-03 03:47:39,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68386169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:39,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:47:39,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:47:39,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694115491] [2022-11-03 03:47:39,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:39,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:47:39,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:39,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:47:39,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:47:39,599 INFO L87 Difference]: Start difference. First operand 3558 states and 13598 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-03 03:47:39,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:39,955 INFO L93 Difference]: Finished difference Result 3324 states and 12959 transitions. [2022-11-03 03:47:39,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:47:39,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2022-11-03 03:47:39,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:39,994 INFO L225 Difference]: With dead ends: 3324 [2022-11-03 03:47:40,012 INFO L226 Difference]: Without dead ends: 3324 [2022-11-03 03:47:40,013 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 [2022-11-03 03:47:40,016 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 108 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:40,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 20 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:47:40,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2022-11-03 03:47:40,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3324. [2022-11-03 03:47:40,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3324 states, 3320 states have (on average 3.903313253012048) internal successors, (12959), 3323 states have internal predecessors, (12959), 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) [2022-11-03 03:47:40,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 12959 transitions. [2022-11-03 03:47:40,188 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 12959 transitions. Word has length 18 [2022-11-03 03:47:40,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:40,189 INFO L495 AbstractCegarLoop]: Abstraction has 3324 states and 12959 transitions. [2022-11-03 03:47:40,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-03 03:47:40,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 12959 transitions. [2022-11-03 03:47:40,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 03:47:40,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:40,204 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] [2022-11-03 03:47:40,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:47:40,205 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 03:47:40,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:40,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1901682503, now seen corresponding path program 1 times [2022-11-03 03:47:40,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:40,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316155386] [2022-11-03 03:47:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:40,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:40,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:47:40,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:40,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316155386] [2022-11-03 03:47:40,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316155386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:40,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:47:40,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:47:40,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939329441] [2022-11-03 03:47:40,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:40,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:47:40,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:40,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:47:40,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:47:40,541 INFO L87 Difference]: Start difference. First operand 3324 states and 12959 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-11-03 03:47:40,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:40,762 INFO L93 Difference]: Finished difference Result 3308 states and 12931 transitions. [2022-11-03 03:47:40,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:47:40,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2022-11-03 03:47:40,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:40,763 INFO L225 Difference]: With dead ends: 3308 [2022-11-03 03:47:40,763 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 03:47:40,763 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 [2022-11-03 03:47:40,764 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 140 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:40,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 16 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:47:40,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 03:47:40,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 03:47:40,765 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) [2022-11-03 03:47:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 03:47:40,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-11-03 03:47:40,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:40,766 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 03:47:40,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-11-03 03:47:40,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 03:47:40,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 03:47:40,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-03 03:47:40,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-03 03:47:40,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-03 03:47:40,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-03 03:47:40,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-03 03:47:40,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-03 03:47:40,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-03 03:47:40,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-03 03:47:40,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-03 03:47:40,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-03 03:47:40,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-03 03:47:40,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-03 03:47:40,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-03 03:47:40,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-03 03:47:40,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-03 03:47:40,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-03 03:47:40,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-03 03:47:40,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-03 03:47:40,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-03 03:47:40,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-03 03:47:40,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:47:40,776 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-03 03:47:40,781 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 03:47:40,782 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:47:40,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:47:40 BasicIcfg [2022-11-03 03:47:40,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:47:40,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:47:40,785 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:47:40,786 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:47:40,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:23" (3/4) ... [2022-11-03 03:47:40,789 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 03:47:40,794 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-03 03:47:40,794 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-03 03:47:40,795 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-03 03:47:40,795 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-03 03:47:40,800 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2022-11-03 03:47:40,800 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-03 03:47:40,800 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-03 03:47:40,801 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:47:40,838 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 03:47:40,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:47:40,839 INFO L158 Benchmark]: Toolchain (without parser) took 19867.23ms. Allocated memory was 90.2MB in the beginning and 474.0MB in the end (delta: 383.8MB). Free memory was 64.6MB in the beginning and 325.6MB in the end (delta: -261.0MB). Peak memory consumption was 123.6MB. Max. memory is 16.1GB. [2022-11-03 03:47:40,839 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 63.7MB in the beginning and 63.7MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:47:40,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.36ms. Allocated memory is still 90.2MB. Free memory was 64.4MB in the beginning and 51.5MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 03:47:40,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.24ms. Allocated memory is still 90.2MB. Free memory was 51.5MB in the beginning and 48.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:47:40,840 INFO L158 Benchmark]: Boogie Preprocessor took 66.01ms. Allocated memory is still 90.2MB. Free memory was 48.9MB in the beginning and 46.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:47:40,841 INFO L158 Benchmark]: RCFGBuilder took 1686.24ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 46.2MB in the beginning and 82.5MB in the end (delta: -36.4MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2022-11-03 03:47:40,841 INFO L158 Benchmark]: TraceAbstraction took 17354.23ms. Allocated memory was 113.2MB in the beginning and 474.0MB in the end (delta: 360.7MB). Free memory was 81.8MB in the beginning and 329.8MB in the end (delta: -248.0MB). Peak memory consumption was 112.4MB. Max. memory is 16.1GB. [2022-11-03 03:47:40,841 INFO L158 Benchmark]: Witness Printer took 53.13ms. Allocated memory is still 474.0MB. Free memory was 329.8MB in the beginning and 325.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:47:40,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 63.7MB in the beginning and 63.7MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.36ms. Allocated memory is still 90.2MB. Free memory was 64.4MB in the beginning and 51.5MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.24ms. Allocated memory is still 90.2MB. Free memory was 51.5MB in the beginning and 48.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.01ms. Allocated memory is still 90.2MB. Free memory was 48.9MB in the beginning and 46.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1686.24ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 46.2MB in the beginning and 82.5MB in the end (delta: -36.4MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17354.23ms. Allocated memory was 113.2MB in the beginning and 474.0MB in the end (delta: 360.7MB). Free memory was 81.8MB in the beginning and 329.8MB in the end (delta: -248.0MB). Peak memory consumption was 112.4MB. Max. memory is 16.1GB. * Witness Printer took 53.13ms. Allocated memory is still 474.0MB. Free memory was 329.8MB in the beginning and 325.6MB 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.8s, 154 PlacesBefore, 53 PlacesAfterwards, 143 TransitionsBefore, 41 TransitionsAfterwards, 4298 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 1 ChoiceCompositions, 120 TotalNumberOfCompositions, 15504 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6256, positive: 5912, positive conditional: 0, positive unconditional: 5912, negative: 344, negative conditional: 0, negative unconditional: 344, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2952, positive: 2867, positive conditional: 0, positive unconditional: 2867, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2952, positive: 2784, positive conditional: 0, positive unconditional: 2784, negative: 168, negative conditional: 0, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 168, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 962, positive: 190, positive conditional: 0, positive unconditional: 190, negative: 771, negative conditional: 0, negative unconditional: 771, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6256, positive: 3045, positive conditional: 0, positive unconditional: 3045, negative: 259, negative conditional: 0, negative unconditional: 259, unknown: 2952, unknown conditional: 0, unknown unconditional: 2952] , Statistics on independence cache: Total cache size (in pairs): 408, Positive cache size: 372, Positive conditional cache size: 0, Positive unconditional cache size: 372, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - 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: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 813]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 813]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 849]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 849]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 187 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 17.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 332 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 332 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 175 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 324 IncrementalHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 32 mSDtfsCounter, 324 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11772occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 03:47:40,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f03a4ac-4be2-4bba-a0c8-e597d955effa/bin/utaipan-7li7fVZpFI/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