./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix037_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix037_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 526eb61a43a151355b0c30c3cdf9498dba5b0f807210313241440694b1deb106 --- 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-8393723 [2022-11-18 18:48:02,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:48:02,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:48:02,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:48:02,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:48:02,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:48:02,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:48:02,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:48:02,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:48:02,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:48:02,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:48:02,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:48:02,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:48:02,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:48:02,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:48:02,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:48:02,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:48:02,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:48:02,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:48:02,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:48:02,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:48:02,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:48:02,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:48:02,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:48:02,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:48:02,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:48:02,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:48:02,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:48:02,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:48:02,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:48:02,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:48:02,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:48:02,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:48:02,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:48:02,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:48:02,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:48:02,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:48:02,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:48:02,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:48:02,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:48:02,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:48:02,869 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 18:48:02,890 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:48:02,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:48:02,891 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:48:02,891 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:48:02,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:48:02,892 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:48:02,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:48:02,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:48:02,893 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:48:02,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:48:02,893 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:48:02,893 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:48:02,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:48:02,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:48:02,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:48:02,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:48:02,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:48:02,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:48:02,895 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 18:48:02,895 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:48:02,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:48:02,895 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:48:02,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:48:02,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:48:02,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:48:02,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:48:02,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:48:02,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:48:02,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:48:02,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:48:02,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:48:02,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:48:02,897 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:48:02,897 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:48:02,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:48:02,898 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_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 526eb61a43a151355b0c30c3cdf9498dba5b0f807210313241440694b1deb106 [2022-11-18 18:48:03,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:48:03,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:48:03,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:48:03,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:48:03,233 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:48:03,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/mix037_tso.oepc.i [2022-11-18 18:48:03,309 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/data/4bf238bac/040ae8503f47461ab3cf31c564a0dbd7/FLAG3a176ac48 [2022-11-18 18:48:04,006 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:48:04,007 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/sv-benchmarks/c/pthread-wmm/mix037_tso.oepc.i [2022-11-18 18:48:04,020 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/data/4bf238bac/040ae8503f47461ab3cf31c564a0dbd7/FLAG3a176ac48 [2022-11-18 18:48:04,265 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/data/4bf238bac/040ae8503f47461ab3cf31c564a0dbd7 [2022-11-18 18:48:04,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:48:04,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:48:04,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:48:04,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:48:04,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:48:04,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:48:04" (1/1) ... [2022-11-18 18:48:04,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18673674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:04, skipping insertion in model container [2022-11-18 18:48:04,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:48:04" (1/1) ... [2022-11-18 18:48:04,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:48:04,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:48:04,549 WARN L234 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_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/sv-benchmarks/c/pthread-wmm/mix037_tso.oepc.i[949,962] [2022-11-18 18:48:04,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:48:04,866 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:48:04,880 WARN L234 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_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/sv-benchmarks/c/pthread-wmm/mix037_tso.oepc.i[949,962] [2022-11-18 18:48:04,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:48:05,030 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:48:05,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05 WrapperNode [2022-11-18 18:48:05,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:48:05,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:48:05,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:48:05,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:48:05,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05" (1/1) ... [2022-11-18 18:48:05,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05" (1/1) ... [2022-11-18 18:48:05,117 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 163 [2022-11-18 18:48:05,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:48:05,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:48:05,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:48:05,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:48:05,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05" (1/1) ... [2022-11-18 18:48:05,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05" (1/1) ... [2022-11-18 18:48:05,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05" (1/1) ... [2022-11-18 18:48:05,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05" (1/1) ... [2022-11-18 18:48:05,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05" (1/1) ... [2022-11-18 18:48:05,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05" (1/1) ... [2022-11-18 18:48:05,147 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05" (1/1) ... [2022-11-18 18:48:05,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05" (1/1) ... [2022-11-18 18:48:05,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:48:05,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:48:05,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:48:05,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:48:05,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05" (1/1) ... [2022-11-18 18:48:05,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:48:05,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:48:05,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:48:05,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:48:05,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:48:05,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 18:48:05,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:48:05,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:48:05,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:48:05,264 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 18:48:05,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 18:48:05,265 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 18:48:05,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 18:48:05,265 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-18 18:48:05,266 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-18 18:48:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-18 18:48:05,266 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-18 18:48:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:48:05,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 18:48:05,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:48:05,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:48:05,268 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:48:05,449 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:48:05,452 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:48:06,024 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:48:06,226 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:48:06,227 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:48:06,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:48:06 BoogieIcfgContainer [2022-11-18 18:48:06,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:48:06,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:48:06,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:48:06,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:48:06,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:48:04" (1/3) ... [2022-11-18 18:48:06,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cec9181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:48:06, skipping insertion in model container [2022-11-18 18:48:06,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:05" (2/3) ... [2022-11-18 18:48:06,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cec9181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:48:06, skipping insertion in model container [2022-11-18 18:48:06,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:48:06" (3/3) ... [2022-11-18 18:48:06,242 INFO L112 eAbstractionObserver]: Analyzing ICFG mix037_tso.oepc.i [2022-11-18 18:48:06,252 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:48:06,263 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:48:06,263 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 18:48:06,263 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:48:06,356 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 18:48:06,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 146 transitions, 312 flow [2022-11-18 18:48:06,515 INFO L130 PetriNetUnfolder]: 2/142 cut-off events. [2022-11-18 18:48:06,516 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:48:06,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 2/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-11-18 18:48:06,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 146 transitions, 312 flow [2022-11-18 18:48:06,527 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 142 transitions, 296 flow [2022-11-18 18:48:06,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:48:06,542 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7712f902, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:48:06,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-18 18:48:06,555 INFO L130 PetriNetUnfolder]: 0/58 cut-off events. [2022-11-18 18:48:06,555 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:48:06,556 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:06,556 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:06,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 18:48:06,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:06,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1630946946, now seen corresponding path program 1 times [2022-11-18 18:48:06,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:06,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895054877] [2022-11-18 18:48:06,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:06,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:06,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:06,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:06,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895054877] [2022-11-18 18:48:06,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895054877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:06,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:06,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:48:06,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422975302] [2022-11-18 18:48:06,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:06,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:48:06,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:07,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:48:07,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:48:07,028 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 146 [2022-11-18 18:48:07,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 142 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2022-11-18 18:48:07,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:07,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 146 [2022-11-18 18:48:07,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:09,332 INFO L130 PetriNetUnfolder]: 4695/8426 cut-off events. [2022-11-18 18:48:09,332 INFO L131 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2022-11-18 18:48:09,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15249 conditions, 8426 events. 4695/8426 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 66933 event pairs, 1436 based on Foata normal form. 146/5925 useless extension candidates. Maximal degree in co-relation 15190. Up to 6284 conditions per place. [2022-11-18 18:48:09,446 INFO L137 encePairwiseOnDemand]: 131/146 looper letters, 35 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2022-11-18 18:48:09,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 154 transitions, 409 flow [2022-11-18 18:48:09,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:48:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:48:09,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2022-11-18 18:48:09,468 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9269406392694064 [2022-11-18 18:48:09,469 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2022-11-18 18:48:09,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2022-11-18 18:48:09,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:09,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2022-11-18 18:48:09,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2022-11-18 18:48:09,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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) [2022-11-18 18:48:09,492 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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) [2022-11-18 18:48:09,494 INFO L175 Difference]: Start difference. First operand has 153 places, 142 transitions, 296 flow. Second operand 3 states and 406 transitions. [2022-11-18 18:48:09,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 154 transitions, 409 flow [2022-11-18 18:48:09,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 154 transitions, 402 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:48:09,511 INFO L231 Difference]: Finished difference. Result has 151 places, 143 transitions, 333 flow [2022-11-18 18:48:09,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=151, PETRI_TRANSITIONS=143} [2022-11-18 18:48:09,520 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, -2 predicate places. [2022-11-18 18:48:09,520 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 143 transitions, 333 flow [2022-11-18 18:48:09,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2022-11-18 18:48:09,521 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:09,522 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:09,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:48:09,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 18:48:09,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:09,524 INFO L85 PathProgramCache]: Analyzing trace with hash 443789156, now seen corresponding path program 1 times [2022-11-18 18:48:09,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:09,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504702390] [2022-11-18 18:48:09,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:09,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:09,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:09,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:09,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504702390] [2022-11-18 18:48:09,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504702390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:09,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:09,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:48:09,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953475968] [2022-11-18 18:48:09,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:09,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:48:09,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:09,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:48:09,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:48:09,749 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 146 [2022-11-18 18:48:09,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 143 transitions, 333 flow. Second operand has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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) [2022-11-18 18:48:09,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:09,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 146 [2022-11-18 18:48:09,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:11,901 INFO L130 PetriNetUnfolder]: 2895/11067 cut-off events. [2022-11-18 18:48:11,902 INFO L131 PetriNetUnfolder]: For 508/508 co-relation queries the response was YES. [2022-11-18 18:48:11,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17756 conditions, 11067 events. 2895/11067 cut-off events. For 508/508 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 129435 event pairs, 1169 based on Foata normal form. 0/9482 useless extension candidates. Maximal degree in co-relation 17698. Up to 2292 conditions per place. [2022-11-18 18:48:12,057 INFO L137 encePairwiseOnDemand]: 133/146 looper letters, 45 selfloop transitions, 13 changer transitions 0/172 dead transitions. [2022-11-18 18:48:12,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 172 transitions, 533 flow [2022-11-18 18:48:12,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:48:12,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 18:48:12,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 534 transitions. [2022-11-18 18:48:12,060 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9143835616438356 [2022-11-18 18:48:12,060 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 534 transitions. [2022-11-18 18:48:12,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 534 transitions. [2022-11-18 18:48:12,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:12,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 534 transitions. [2022-11-18 18:48:12,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 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) [2022-11-18 18:48:12,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 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) [2022-11-18 18:48:12,065 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 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) [2022-11-18 18:48:12,065 INFO L175 Difference]: Start difference. First operand has 151 places, 143 transitions, 333 flow. Second operand 4 states and 534 transitions. [2022-11-18 18:48:12,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 172 transitions, 533 flow [2022-11-18 18:48:12,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 172 transitions, 528 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:48:12,070 INFO L231 Difference]: Finished difference. Result has 155 places, 151 transitions, 431 flow [2022-11-18 18:48:12,070 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=431, PETRI_PLACES=155, PETRI_TRANSITIONS=151} [2022-11-18 18:48:12,071 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 2 predicate places. [2022-11-18 18:48:12,072 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 151 transitions, 431 flow [2022-11-18 18:48:12,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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) [2022-11-18 18:48:12,072 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:12,073 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:12,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:48:12,073 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 18:48:12,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:12,074 INFO L85 PathProgramCache]: Analyzing trace with hash -690557737, now seen corresponding path program 1 times [2022-11-18 18:48:12,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:12,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524493920] [2022-11-18 18:48:12,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:12,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:12,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:12,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524493920] [2022-11-18 18:48:12,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524493920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:12,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:12,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:48:12,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039041884] [2022-11-18 18:48:12,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:12,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:48:12,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:12,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:48:12,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:48:12,231 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 146 [2022-11-18 18:48:12,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 151 transitions, 431 flow. Second operand has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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) [2022-11-18 18:48:12,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:12,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 146 [2022-11-18 18:48:12,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:13,152 INFO L130 PetriNetUnfolder]: 1421/5069 cut-off events. [2022-11-18 18:48:13,152 INFO L131 PetriNetUnfolder]: For 3303/3303 co-relation queries the response was YES. [2022-11-18 18:48:13,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9107 conditions, 5069 events. 1421/5069 cut-off events. For 3303/3303 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 49044 event pairs, 771 based on Foata normal form. 431/5040 useless extension candidates. Maximal degree in co-relation 9046. Up to 1726 conditions per place. [2022-11-18 18:48:13,196 INFO L137 encePairwiseOnDemand]: 137/146 looper letters, 35 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2022-11-18 18:48:13,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 154 transitions, 483 flow [2022-11-18 18:48:13,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:48:13,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 18:48:13,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 512 transitions. [2022-11-18 18:48:13,199 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8767123287671232 [2022-11-18 18:48:13,199 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 512 transitions. [2022-11-18 18:48:13,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 512 transitions. [2022-11-18 18:48:13,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:13,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 512 transitions. [2022-11-18 18:48:13,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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) [2022-11-18 18:48:13,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 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) [2022-11-18 18:48:13,204 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 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) [2022-11-18 18:48:13,205 INFO L175 Difference]: Start difference. First operand has 155 places, 151 transitions, 431 flow. Second operand 4 states and 512 transitions. [2022-11-18 18:48:13,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 154 transitions, 483 flow [2022-11-18 18:48:13,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 154 transitions, 460 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-18 18:48:13,218 INFO L231 Difference]: Finished difference. Result has 151 places, 143 transitions, 362 flow [2022-11-18 18:48:13,219 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=151, PETRI_TRANSITIONS=143} [2022-11-18 18:48:13,219 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, -2 predicate places. [2022-11-18 18:48:13,220 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 143 transitions, 362 flow [2022-11-18 18:48:13,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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) [2022-11-18 18:48:13,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:13,221 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:13,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:48:13,221 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 18:48:13,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:13,222 INFO L85 PathProgramCache]: Analyzing trace with hash -254416341, now seen corresponding path program 1 times [2022-11-18 18:48:13,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:13,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438189544] [2022-11-18 18:48:13,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:13,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:13,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:13,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:13,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438189544] [2022-11-18 18:48:13,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438189544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:13,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:13,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:48:13,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289906596] [2022-11-18 18:48:13,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:13,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:48:13,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:13,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:48:13,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:48:13,448 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 146 [2022-11-18 18:48:13,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 143 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2022-11-18 18:48:13,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:13,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 146 [2022-11-18 18:48:13,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:14,268 INFO L130 PetriNetUnfolder]: 1187/3060 cut-off events. [2022-11-18 18:48:14,269 INFO L131 PetriNetUnfolder]: For 1155/1155 co-relation queries the response was YES. [2022-11-18 18:48:14,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5994 conditions, 3060 events. 1187/3060 cut-off events. For 1155/1155 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 24733 event pairs, 213 based on Foata normal form. 0/2938 useless extension candidates. Maximal degree in co-relation 5934. Up to 661 conditions per place. [2022-11-18 18:48:14,298 INFO L137 encePairwiseOnDemand]: 137/146 looper letters, 46 selfloop transitions, 13 changer transitions 4/177 dead transitions. [2022-11-18 18:48:14,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 177 transitions, 584 flow [2022-11-18 18:48:14,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:48:14,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:48:14,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 657 transitions. [2022-11-18 18:48:14,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9 [2022-11-18 18:48:14,302 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 657 transitions. [2022-11-18 18:48:14,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 657 transitions. [2022-11-18 18:48:14,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:14,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 657 transitions. [2022-11-18 18:48:14,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 131.4) internal successors, (657), 5 states have internal predecessors, (657), 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) [2022-11-18 18:48:14,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 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) [2022-11-18 18:48:14,309 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 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) [2022-11-18 18:48:14,309 INFO L175 Difference]: Start difference. First operand has 151 places, 143 transitions, 362 flow. Second operand 5 states and 657 transitions. [2022-11-18 18:48:14,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 177 transitions, 584 flow [2022-11-18 18:48:14,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 177 transitions, 578 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:48:14,315 INFO L231 Difference]: Finished difference. Result has 154 places, 143 transitions, 398 flow [2022-11-18 18:48:14,316 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=398, PETRI_PLACES=154, PETRI_TRANSITIONS=143} [2022-11-18 18:48:14,316 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 1 predicate places. [2022-11-18 18:48:14,317 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 143 transitions, 398 flow [2022-11-18 18:48:14,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2022-11-18 18:48:14,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:48:14,318 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:14,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:48:14,318 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-18 18:48:14,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:14,319 INFO L85 PathProgramCache]: Analyzing trace with hash -292146683, now seen corresponding path program 1 times [2022-11-18 18:48:14,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:14,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484116133] [2022-11-18 18:48:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:14,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:14,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:14,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:14,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484116133] [2022-11-18 18:48:14,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484116133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:14,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:14,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:48:14,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325063416] [2022-11-18 18:48:14,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:14,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:48:14,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:14,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:48:14,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:48:14,585 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 146 [2022-11-18 18:48:14,586 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 143 transitions, 398 flow. Second operand has 6 states, 6 states have (on average 120.33333333333333) internal successors, (722), 6 states have internal predecessors, (722), 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) [2022-11-18 18:48:14,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:48:14,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 146 [2022-11-18 18:48:14,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:48:15,353 INFO L130 PetriNetUnfolder]: 1160/3005 cut-off events. [2022-11-18 18:48:15,353 INFO L131 PetriNetUnfolder]: For 1411/1411 co-relation queries the response was YES. [2022-11-18 18:48:15,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6505 conditions, 3005 events. 1160/3005 cut-off events. For 1411/1411 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 24270 event pairs, 213 based on Foata normal form. 16/2920 useless extension candidates. Maximal degree in co-relation 6444. Up to 661 conditions per place. [2022-11-18 18:48:15,365 INFO L137 encePairwiseOnDemand]: 137/146 looper letters, 0 selfloop transitions, 0 changer transitions 169/169 dead transitions. [2022-11-18 18:48:15,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 169 transitions, 548 flow [2022-11-18 18:48:15,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:48:15,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:48:15,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 767 transitions. [2022-11-18 18:48:15,369 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8755707762557078 [2022-11-18 18:48:15,369 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 767 transitions. [2022-11-18 18:48:15,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 767 transitions. [2022-11-18 18:48:15,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:48:15,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 767 transitions. [2022-11-18 18:48:15,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 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) [2022-11-18 18:48:15,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 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) [2022-11-18 18:48:15,375 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 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) [2022-11-18 18:48:15,375 INFO L175 Difference]: Start difference. First operand has 154 places, 143 transitions, 398 flow. Second operand 6 states and 767 transitions. [2022-11-18 18:48:15,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 169 transitions, 548 flow [2022-11-18 18:48:15,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 169 transitions, 493 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-18 18:48:15,403 INFO L231 Difference]: Finished difference. Result has 149 places, 0 transitions, 0 flow [2022-11-18 18:48:15,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=149, PETRI_TRANSITIONS=0} [2022-11-18 18:48:15,404 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, -4 predicate places. [2022-11-18 18:48:15,404 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 0 transitions, 0 flow [2022-11-18 18:48:15,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.33333333333333) internal successors, (722), 6 states have internal predecessors, (722), 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) [2022-11-18 18:48:15,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-18 18:48:15,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-18 18:48:15,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-18 18:48:15,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-18 18:48:15,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-18 18:48:15,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-18 18:48:15,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-18 18:48:15,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-18 18:48:15,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-18 18:48:15,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-18 18:48:15,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-18 18:48:15,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-18 18:48:15,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-18 18:48:15,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-18 18:48:15,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-18 18:48:15,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-18 18:48:15,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-18 18:48:15,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-18 18:48:15,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-18 18:48:15,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-18 18:48:15,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:48:15,413 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 18:48:15,419 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 18:48:15,419 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:48:15,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:48:15 BasicIcfg [2022-11-18 18:48:15,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:48:15,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:48:15,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:48:15,425 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:48:15,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:48:06" (3/4) ... [2022-11-18 18:48:15,428 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 18:48:15,433 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-18 18:48:15,434 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-18 18:48:15,434 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-18 18:48:15,434 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-18 18:48:15,439 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2022-11-18 18:48:15,439 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-18 18:48:15,439 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 18:48:15,440 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 18:48:15,478 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:48:15,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:48:15,479 INFO L158 Benchmark]: Toolchain (without parser) took 11209.06ms. Allocated memory was 146.8MB in the beginning and 1.0GB in the end (delta: 891.3MB). Free memory was 117.5MB in the beginning and 815.0MB in the end (delta: -697.5MB). Peak memory consumption was 193.7MB. Max. memory is 16.1GB. [2022-11-18 18:48:15,479 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 92.3MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 47.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:48:15,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 759.97ms. Allocated memory is still 146.8MB. Free memory was 117.0MB in the beginning and 109.4MB in the end (delta: 7.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 18:48:15,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.88ms. Allocated memory is still 146.8MB. Free memory was 109.4MB in the beginning and 106.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:48:15,480 INFO L158 Benchmark]: Boogie Preprocessor took 34.13ms. Allocated memory is still 146.8MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:48:15,480 INFO L158 Benchmark]: RCFGBuilder took 1076.65ms. Allocated memory is still 146.8MB. Free memory was 104.7MB in the beginning and 119.0MB in the end (delta: -14.3MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. [2022-11-18 18:48:15,481 INFO L158 Benchmark]: TraceAbstraction took 9189.96ms. Allocated memory was 146.8MB in the beginning and 1.0GB in the end (delta: 891.3MB). Free memory was 119.0MB in the beginning and 818.1MB in the end (delta: -699.2MB). Peak memory consumption was 603.0MB. Max. memory is 16.1GB. [2022-11-18 18:48:15,481 INFO L158 Benchmark]: Witness Printer took 53.09ms. Allocated memory is still 1.0GB. Free memory was 818.1MB in the beginning and 815.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 18:48:15,483 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 92.3MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 47.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 759.97ms. Allocated memory is still 146.8MB. Free memory was 117.0MB in the beginning and 109.4MB in the end (delta: 7.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.88ms. Allocated memory is still 146.8MB. Free memory was 109.4MB in the beginning and 106.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.13ms. Allocated memory is still 146.8MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1076.65ms. Allocated memory is still 146.8MB. Free memory was 104.7MB in the beginning and 119.0MB in the end (delta: -14.3MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9189.96ms. Allocated memory was 146.8MB in the beginning and 1.0GB in the end (delta: 891.3MB). Free memory was 119.0MB in the beginning and 818.1MB in the end (delta: -699.2MB). Peak memory consumption was 603.0MB. Max. memory is 16.1GB. * Witness Printer took 53.09ms. Allocated memory is still 1.0GB. Free memory was 818.1MB in the beginning and 815.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 843]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 843]: 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, 191 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 298 IncrementalHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 17 mSDtfsCounter, 298 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=431occurred in iteration=2, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 356 NumberOfCodeBlocks, 356 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 351 ConstructedInterpolants, 0 QuantifiedInterpolants, 813 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! [2022-11-18 18:48:15,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e2fe0f-0214-4cab-8b2c-736d41b9ec88/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE