./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix037.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix037.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:13:49,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:13:49,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:13:49,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:13:49,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:13:49,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:13:49,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:13:49,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:13:49,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:13:49,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:13:49,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:13:49,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:13:49,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:13:49,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:13:49,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:13:49,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:13:49,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:13:49,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:13:49,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:13:49,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:13:49,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:13:49,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:13:49,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:13:49,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:13:49,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:13:49,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:13:49,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:13:49,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:13:49,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:13:49,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:13:49,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:13:49,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:13:49,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:13:49,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:13:49,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:13:49,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:13:49,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:13:49,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:13:49,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:13:49,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:13:49,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:13:49,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:13:49,864 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:13:49,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:13:49,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:13:49,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:13:49,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:13:49,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:13:49,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:13:49,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:13:49,868 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:13:49,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:13:49,868 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:13:49,868 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:13:49,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:13:49,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:13:49,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:13:49,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:13:49,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:13:49,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:13:49,870 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:13:49,870 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:13:49,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:13:49,871 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:13:49,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:13:49,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:13:49,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:13:49,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:13:49,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:13:49,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:13:49,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:13:49,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:13:49,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:13:49,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:13:49,884 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:13:49,884 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:13:49,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:13:49,884 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_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef [2022-11-16 11:13:50,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:13:50,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:13:50,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:13:50,191 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:13:50,192 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:13:50,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix037.opt.i [2022-11-16 11:13:50,265 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/data/1af2844e2/4a12ce8859724b3aaec0a3aaef3273a7/FLAG0eef59bee [2022-11-16 11:13:50,816 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:13:50,816 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/sv-benchmarks/c/pthread-wmm/mix037.opt.i [2022-11-16 11:13:50,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/data/1af2844e2/4a12ce8859724b3aaec0a3aaef3273a7/FLAG0eef59bee [2022-11-16 11:13:51,087 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/data/1af2844e2/4a12ce8859724b3aaec0a3aaef3273a7 [2022-11-16 11:13:51,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:13:51,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:13:51,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:13:51,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:13:51,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:13:51,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:51,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be39e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51, skipping insertion in model container [2022-11-16 11:13:51,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:51,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:13:51,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:13:51,417 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/sv-benchmarks/c/pthread-wmm/mix037.opt.i[944,957] [2022-11-16 11:13:51,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:13:51,778 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:13:51,802 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/sv-benchmarks/c/pthread-wmm/mix037.opt.i[944,957] [2022-11-16 11:13:51,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:13:51,935 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:13:51,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51 WrapperNode [2022-11-16 11:13:51,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:13:51,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:13:51,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:13:51,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:13:51,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:51,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:52,027 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 154 [2022-11-16 11:13:52,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:13:52,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:13:52,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:13:52,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:13:52,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:52,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:52,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:52,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:52,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:52,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:52,090 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:52,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:52,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:13:52,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:13:52,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:13:52,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:13:52,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51" (1/1) ... [2022-11-16 11:13:52,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:13:52,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:13:52,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:13:52,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:13:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:13:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:13:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:13:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:13:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:13:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 11:13:52,186 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 11:13:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 11:13:52,186 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 11:13:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 11:13:52,186 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 11:13:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 11:13:52,186 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 11:13:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:13:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:13:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:13:52,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:13:52,189 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:13:52,343 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:13:52,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:13:52,802 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:13:53,008 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:13:53,008 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:13:53,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:13:53 BoogieIcfgContainer [2022-11-16 11:13:53,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:13:53,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:13:53,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:13:53,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:13:53,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:13:51" (1/3) ... [2022-11-16 11:13:53,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec0b364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:13:53, skipping insertion in model container [2022-11-16 11:13:53,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:51" (2/3) ... [2022-11-16 11:13:53,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec0b364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:13:53, skipping insertion in model container [2022-11-16 11:13:53,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:13:53" (3/3) ... [2022-11-16 11:13:53,023 INFO L112 eAbstractionObserver]: Analyzing ICFG mix037.opt.i [2022-11-16 11:13:53,040 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:13:53,053 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:13:53,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 11:13:53,053 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:13:53,197 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:13:53,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 143 transitions, 306 flow [2022-11-16 11:13:53,395 INFO L130 PetriNetUnfolder]: 2/139 cut-off events. [2022-11-16 11:13:53,395 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:13:53,403 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 5. Compared 91 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2022-11-16 11:13:53,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 143 transitions, 306 flow [2022-11-16 11:13:53,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 139 transitions, 290 flow [2022-11-16 11:13:53,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:13:53,435 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;@360bb3ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:13:53,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-16 11:13:53,449 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-11-16 11:13:53,449 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:13:53,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:53,450 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] [2022-11-16 11:13:53,451 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 11:13:53,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:53,457 INFO L85 PathProgramCache]: Analyzing trace with hash -300944247, now seen corresponding path program 1 times [2022-11-16 11:13:53,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:53,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614467905] [2022-11-16 11:13:53,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:53,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:53,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:13:53,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:53,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614467905] [2022-11-16 11:13:53,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614467905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:53,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:53,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:13:53,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307699163] [2022-11-16 11:13:53,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:53,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:13:53,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:53,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:13:53,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:13:53,904 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 143 [2022-11-16 11:13:53,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 139 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:53,908 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:53,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 143 [2022-11-16 11:13:53,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:55,148 INFO L130 PetriNetUnfolder]: 2210/4073 cut-off events. [2022-11-16 11:13:55,148 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-16 11:13:55,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7378 conditions, 4073 events. 2210/4073 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 31454 event pairs, 1752 based on Foata normal form. 543/3204 useless extension candidates. Maximal degree in co-relation 7319. Up to 3146 conditions per place. [2022-11-16 11:13:55,275 INFO L137 encePairwiseOnDemand]: 128/143 looper letters, 29 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2022-11-16 11:13:55,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 148 transitions, 385 flow [2022-11-16 11:13:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:13:55,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:13:55,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2022-11-16 11:13:55,299 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9324009324009324 [2022-11-16 11:13:55,299 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2022-11-16 11:13:55,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2022-11-16 11:13:55,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:55,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2022-11-16 11:13:55,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:55,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:55,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:55,326 INFO L175 Difference]: Start difference. First operand has 150 places, 139 transitions, 290 flow. Second operand 3 states and 400 transitions. [2022-11-16 11:13:55,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 148 transitions, 385 flow [2022-11-16 11:13:55,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 148 transitions, 378 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:13:55,344 INFO L231 Difference]: Finished difference. Result has 148 places, 140 transitions, 327 flow [2022-11-16 11:13:55,347 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=148, PETRI_TRANSITIONS=140} [2022-11-16 11:13:55,353 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, -2 predicate places. [2022-11-16 11:13:55,353 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 140 transitions, 327 flow [2022-11-16 11:13:55,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:55,354 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:55,355 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] [2022-11-16 11:13:55,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:13:55,355 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 11:13:55,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:55,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1667174696, now seen corresponding path program 1 times [2022-11-16 11:13:55,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:55,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454851027] [2022-11-16 11:13:55,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:55,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:55,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:13:55,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:55,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454851027] [2022-11-16 11:13:55,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454851027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:55,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:55,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:13:55,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302783557] [2022-11-16 11:13:55,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:55,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:13:55,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:55,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:13:55,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:13:55,565 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 143 [2022-11-16 11:13:55,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 140 transitions, 327 flow. Second operand has 4 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:55,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:55,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 143 [2022-11-16 11:13:55,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:56,354 INFO L130 PetriNetUnfolder]: 1230/2551 cut-off events. [2022-11-16 11:13:56,355 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2022-11-16 11:13:56,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5781 conditions, 2551 events. 1230/2551 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 19641 event pairs, 161 based on Foata normal form. 0/1919 useless extension candidates. Maximal degree in co-relation 5723. Up to 1142 conditions per place. [2022-11-16 11:13:56,394 INFO L137 encePairwiseOnDemand]: 130/143 looper letters, 36 selfloop transitions, 13 changer transitions 0/163 dead transitions. [2022-11-16 11:13:56,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 163 transitions, 497 flow [2022-11-16 11:13:56,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:13:56,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:13:56,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 525 transitions. [2022-11-16 11:13:56,397 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9178321678321678 [2022-11-16 11:13:56,397 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 525 transitions. [2022-11-16 11:13:56,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 525 transitions. [2022-11-16 11:13:56,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:56,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 525 transitions. [2022-11-16 11:13:56,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.25) internal successors, (525), 4 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:56,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:56,404 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:56,404 INFO L175 Difference]: Start difference. First operand has 148 places, 140 transitions, 327 flow. Second operand 4 states and 525 transitions. [2022-11-16 11:13:56,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 163 transitions, 497 flow [2022-11-16 11:13:56,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 163 transitions, 492 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:13:56,415 INFO L231 Difference]: Finished difference. Result has 152 places, 148 transitions, 425 flow [2022-11-16 11:13:56,416 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=425, PETRI_PLACES=152, PETRI_TRANSITIONS=148} [2022-11-16 11:13:56,417 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, 2 predicate places. [2022-11-16 11:13:56,417 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 148 transitions, 425 flow [2022-11-16 11:13:56,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:56,418 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:56,419 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] [2022-11-16 11:13:56,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:13:56,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 11:13:56,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:56,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1025259471, now seen corresponding path program 1 times [2022-11-16 11:13:56,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:56,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041752378] [2022-11-16 11:13:56,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:56,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:56,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:13:56,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:56,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041752378] [2022-11-16 11:13:56,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041752378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:56,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:56,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:13:56,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454070526] [2022-11-16 11:13:56,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:56,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:13:56,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:56,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:13:56,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:13:56,657 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 143 [2022-11-16 11:13:56,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 148 transitions, 425 flow. Second operand has 4 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:56,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:56,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 143 [2022-11-16 11:13:56,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:57,039 INFO L130 PetriNetUnfolder]: 472/1147 cut-off events. [2022-11-16 11:13:57,039 INFO L131 PetriNetUnfolder]: For 596/596 co-relation queries the response was YES. [2022-11-16 11:13:57,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2840 conditions, 1147 events. 472/1147 cut-off events. For 596/596 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7457 event pairs, 50 based on Foata normal form. 226/1243 useless extension candidates. Maximal degree in co-relation 2779. Up to 691 conditions per place. [2022-11-16 11:13:57,055 INFO L137 encePairwiseOnDemand]: 134/143 looper letters, 29 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2022-11-16 11:13:57,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 148 transitions, 459 flow [2022-11-16 11:13:57,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:13:57,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:13:57,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 506 transitions. [2022-11-16 11:13:57,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8846153846153846 [2022-11-16 11:13:57,058 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 506 transitions. [2022-11-16 11:13:57,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 506 transitions. [2022-11-16 11:13:57,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:57,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 506 transitions. [2022-11-16 11:13:57,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.5) internal successors, (506), 4 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:57,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:57,062 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:57,062 INFO L175 Difference]: Start difference. First operand has 152 places, 148 transitions, 425 flow. Second operand 4 states and 506 transitions. [2022-11-16 11:13:57,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 148 transitions, 459 flow [2022-11-16 11:13:57,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 148 transitions, 436 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-16 11:13:57,072 INFO L231 Difference]: Finished difference. Result has 148 places, 140 transitions, 356 flow [2022-11-16 11:13:57,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=356, PETRI_PLACES=148, PETRI_TRANSITIONS=140} [2022-11-16 11:13:57,074 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, -2 predicate places. [2022-11-16 11:13:57,074 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 140 transitions, 356 flow [2022-11-16 11:13:57,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:57,074 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:57,075 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] [2022-11-16 11:13:57,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:13:57,075 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 11:13:57,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:57,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1857912181, now seen corresponding path program 1 times [2022-11-16 11:13:57,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:57,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573842539] [2022-11-16 11:13:57,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:57,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:13:57,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:57,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573842539] [2022-11-16 11:13:57,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573842539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:57,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:57,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:13:57,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046190538] [2022-11-16 11:13:57,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:57,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:13:57,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:57,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:13:57,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:13:57,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 143 [2022-11-16 11:13:57,302 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 140 transitions, 356 flow. Second operand has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:57,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:57,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 143 [2022-11-16 11:13:57,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:57,662 INFO L130 PetriNetUnfolder]: 334/961 cut-off events. [2022-11-16 11:13:57,662 INFO L131 PetriNetUnfolder]: For 459/459 co-relation queries the response was YES. [2022-11-16 11:13:57,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1984 conditions, 961 events. 334/961 cut-off events. For 459/459 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5893 event pairs, 55 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 1924. Up to 203 conditions per place. [2022-11-16 11:13:57,671 INFO L137 encePairwiseOnDemand]: 134/143 looper letters, 34 selfloop transitions, 13 changer transitions 4/165 dead transitions. [2022-11-16 11:13:57,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 165 transitions, 536 flow [2022-11-16 11:13:57,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:13:57,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:13:57,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 645 transitions. [2022-11-16 11:13:57,674 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9020979020979021 [2022-11-16 11:13:57,674 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 645 transitions. [2022-11-16 11:13:57,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 645 transitions. [2022-11-16 11:13:57,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:57,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 645 transitions. [2022-11-16 11:13:57,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:57,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:57,679 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:57,680 INFO L175 Difference]: Start difference. First operand has 148 places, 140 transitions, 356 flow. Second operand 5 states and 645 transitions. [2022-11-16 11:13:57,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 165 transitions, 536 flow [2022-11-16 11:13:57,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 165 transitions, 530 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:13:57,685 INFO L231 Difference]: Finished difference. Result has 151 places, 140 transitions, 392 flow [2022-11-16 11:13:57,685 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=392, PETRI_PLACES=151, PETRI_TRANSITIONS=140} [2022-11-16 11:13:57,686 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, 1 predicate places. [2022-11-16 11:13:57,686 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 140 transitions, 392 flow [2022-11-16 11:13:57,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:57,687 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:57,687 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] [2022-11-16 11:13:57,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:13:57,688 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 11:13:57,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:57,688 INFO L85 PathProgramCache]: Analyzing trace with hash -4132160, now seen corresponding path program 1 times [2022-11-16 11:13:57,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:57,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938547910] [2022-11-16 11:13:57,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:57,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:13:57,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:57,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938547910] [2022-11-16 11:13:57,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938547910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:57,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:57,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:13:57,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412736038] [2022-11-16 11:13:57,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:57,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:13:57,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:57,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:13:57,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:13:57,906 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 143 [2022-11-16 11:13:57,908 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 392 flow. Second operand has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:57,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:57,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 143 [2022-11-16 11:13:57,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:58,187 INFO L130 PetriNetUnfolder]: 315/867 cut-off events. [2022-11-16 11:13:58,187 INFO L131 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2022-11-16 11:13:58,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2112 conditions, 867 events. 315/867 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5137 event pairs, 17 based on Foata normal form. 12/863 useless extension candidates. Maximal degree in co-relation 2051. Up to 191 conditions per place. [2022-11-16 11:13:58,192 INFO L137 encePairwiseOnDemand]: 134/143 looper letters, 0 selfloop transitions, 0 changer transitions 157/157 dead transitions. [2022-11-16 11:13:58,193 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 157 transitions, 500 flow [2022-11-16 11:13:58,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:13:58,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:13:58,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 755 transitions. [2022-11-16 11:13:58,201 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.87995337995338 [2022-11-16 11:13:58,201 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 755 transitions. [2022-11-16 11:13:58,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 755 transitions. [2022-11-16 11:13:58,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:58,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 755 transitions. [2022-11-16 11:13:58,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.83333333333333) internal successors, (755), 6 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:58,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:58,207 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:58,207 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 392 flow. Second operand 6 states and 755 transitions. [2022-11-16 11:13:58,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 157 transitions, 500 flow [2022-11-16 11:13:58,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 157 transitions, 445 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-16 11:13:58,220 INFO L231 Difference]: Finished difference. Result has 146 places, 0 transitions, 0 flow [2022-11-16 11:13:58,220 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=146, PETRI_TRANSITIONS=0} [2022-11-16 11:13:58,224 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, -4 predicate places. [2022-11-16 11:13:58,224 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 0 transitions, 0 flow [2022-11-16 11:13:58,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:58,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-16 11:13:58,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-16 11:13:58,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-16 11:13:58,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-16 11:13:58,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-16 11:13:58,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-16 11:13:58,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-16 11:13:58,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-16 11:13:58,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-16 11:13:58,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-16 11:13:58,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-16 11:13:58,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-16 11:13:58,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-16 11:13:58,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-16 11:13:58,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-16 11:13:58,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-16 11:13:58,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-16 11:13:58,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-16 11:13:58,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-16 11:13:58,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-16 11:13:58,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:13:58,241 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 11:13:58,249 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:13:58,249 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:13:58,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:13:58 BasicIcfg [2022-11-16 11:13:58,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:13:58,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:13:58,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:13:58,255 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:13:58,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:13:53" (3/4) ... [2022-11-16 11:13:58,258 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:13:58,264 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 11:13:58,264 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 11:13:58,264 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-16 11:13:58,265 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-16 11:13:58,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-16 11:13:58,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 11:13:58,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:13:58,274 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:13:58,326 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:13:58,326 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:13:58,327 INFO L158 Benchmark]: Toolchain (without parser) took 7235.62ms. Allocated memory was 111.1MB in the beginning and 343.9MB in the end (delta: 232.8MB). Free memory was 65.0MB in the beginning and 135.4MB in the end (delta: -70.4MB). Peak memory consumption was 162.2MB. Max. memory is 16.1GB. [2022-11-16 11:13:58,327 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory was 82.8MB in the beginning and 82.7MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:13:58,327 INFO L158 Benchmark]: CACSL2BoogieTranslator took 839.33ms. Allocated memory is still 111.1MB. Free memory was 64.7MB in the beginning and 72.6MB in the end (delta: -7.9MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-11-16 11:13:58,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.84ms. Allocated memory is still 111.1MB. Free memory was 72.6MB in the beginning and 70.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:13:58,333 INFO L158 Benchmark]: Boogie Preprocessor took 66.82ms. Allocated memory is still 111.1MB. Free memory was 70.0MB in the beginning and 68.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:13:58,333 INFO L158 Benchmark]: RCFGBuilder took 915.63ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 68.0MB in the beginning and 106.3MB in the end (delta: -38.3MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2022-11-16 11:13:58,333 INFO L158 Benchmark]: TraceAbstraction took 5239.46ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 105.6MB in the beginning and 138.6MB in the end (delta: -32.9MB). Peak memory consumption was 167.7MB. Max. memory is 16.1GB. [2022-11-16 11:13:58,334 INFO L158 Benchmark]: Witness Printer took 71.03ms. Allocated memory is still 343.9MB. Free memory was 138.6MB in the beginning and 135.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:13:58,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory was 82.8MB in the beginning and 82.7MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 839.33ms. Allocated memory is still 111.1MB. Free memory was 64.7MB in the beginning and 72.6MB in the end (delta: -7.9MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.84ms. Allocated memory is still 111.1MB. Free memory was 72.6MB in the beginning and 70.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.82ms. Allocated memory is still 111.1MB. Free memory was 70.0MB in the beginning and 68.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 915.63ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 68.0MB in the beginning and 106.3MB in the end (delta: -38.3MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5239.46ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 105.6MB in the beginning and 138.6MB in the end (delta: -32.9MB). Peak memory consumption was 167.7MB. Max. memory is 16.1GB. * Witness Printer took 71.03ms. Allocated memory is still 343.9MB. Free memory was 138.6MB in the beginning and 135.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 841]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 841]: 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, 185 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: 5.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 254 IncrementalHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 17 mSDtfsCounter, 254 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=425occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 345 NumberOfCodeBlocks, 345 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 700 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! [2022-11-16 11:13:58,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_068f18c9-9ce5-4671-b794-8d9464758de4/bin/uautomizer-tPACEb0tL8/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