./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c --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_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/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_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/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_35773bbe-580f-434e-a456-f59ae5e0269c/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 841ea5a5ca051cc33dfe29d877ccdea4b63526a0ee61a2de18869a9ba1858c4b --- 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 10:59:23,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:59:23,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:59:24,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:59:24,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:59:24,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:59:24,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:59:24,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:59:24,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:59:24,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:59:24,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:59:24,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:59:24,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:59:24,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:59:24,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:59:24,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:59:24,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:59:24,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:59:24,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:59:24,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:59:24,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:59:24,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:59:24,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:59:24,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:59:24,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:59:24,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:59:24,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:59:24,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:59:24,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:59:24,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:59:24,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:59:24,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:59:24,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:59:24,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:59:24,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:59:24,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:59:24,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:59:24,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:59:24,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:59:24,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:59:24,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:59:24,087 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 10:59:24,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:59:24,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:59:24,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:59:24,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:59:24,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:59:24,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:59:24,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:59:24,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:59:24,139 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:59:24,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:59:24,140 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:59:24,141 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 10:59:24,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:59:24,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:59:24,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:59:24,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:59:24,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:59:24,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:59:24,142 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 10:59:24,142 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:59:24,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:59:24,143 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:59:24,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:59:24,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:59:24,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:59:24,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:59:24,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:59:24,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:59:24,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:59:24,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:59:24,147 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:59:24,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:59:24,148 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:59:24,148 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:59:24,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:59:24,149 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_35773bbe-580f-434e-a456-f59ae5e0269c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 841ea5a5ca051cc33dfe29d877ccdea4b63526a0ee61a2de18869a9ba1858c4b [2022-11-16 10:59:24,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:59:24,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:59:24,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:59:24,489 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:59:24,490 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:59:24,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2022-11-16 10:59:24,577 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/data/e7e524a3e/af9c1173e544455889707a072c8c81d8/FLAGb35d9f22c [2022-11-16 10:59:25,051 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:59:25,051 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2022-11-16 10:59:25,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/data/e7e524a3e/af9c1173e544455889707a072c8c81d8/FLAGb35d9f22c [2022-11-16 10:59:25,430 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/data/e7e524a3e/af9c1173e544455889707a072c8c81d8 [2022-11-16 10:59:25,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:59:25,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:59:25,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:59:25,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:59:25,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:59:25,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749a898c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25, skipping insertion in model container [2022-11-16 10:59:25,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:59:25,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:59:25,685 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_35773bbe-580f-434e-a456-f59ae5e0269c/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[4007,4020] [2022-11-16 10:59:25,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:59:25,700 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:59:25,733 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_35773bbe-580f-434e-a456-f59ae5e0269c/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[4007,4020] [2022-11-16 10:59:25,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:59:25,751 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:59:25,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25 WrapperNode [2022-11-16 10:59:25,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:59:25,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:59:25,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:59:25,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:59:25,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,798 INFO L138 Inliner]: procedures = 26, calls = 73, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 287 [2022-11-16 10:59:25,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:59:25,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:59:25,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:59:25,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:59:25,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,831 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:59:25,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:59:25,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:59:25,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:59:25,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25" (1/1) ... [2022-11-16 10:59:25,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:59:25,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:59:25,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:59:25,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:59:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:59:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:59:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:59:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:59:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 10:59:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 10:59:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 10:59:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 10:59:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 10:59:25,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 10:59:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 10:59:25,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 10:59:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:59:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 10:59:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 10:59:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 10:59:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:59:25,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:59:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:59:25,969 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 10:59:26,127 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:59:26,129 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:59:26,710 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:59:26,980 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:59:26,980 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-16 10:59:26,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:59:26 BoogieIcfgContainer [2022-11-16 10:59:26,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:59:27,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:59:27,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:59:27,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:59:27,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:59:25" (1/3) ... [2022-11-16 10:59:27,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41259dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:59:27, skipping insertion in model container [2022-11-16 10:59:27,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:59:25" (2/3) ... [2022-11-16 10:59:27,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41259dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:59:27, skipping insertion in model container [2022-11-16 10:59:27,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:59:26" (3/3) ... [2022-11-16 10:59:27,011 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons3.wvr.c [2022-11-16 10:59:27,025 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 10:59:27,037 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:59:27,038 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-16 10:59:27,038 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 10:59:27,209 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-16 10:59:27,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 266 transitions, 564 flow [2022-11-16 10:59:27,434 INFO L130 PetriNetUnfolder]: 18/262 cut-off events. [2022-11-16 10:59:27,434 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 10:59:27,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 262 events. 18/262 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 225 event pairs, 0 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 227. Up to 3 conditions per place. [2022-11-16 10:59:27,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 266 transitions, 564 flow [2022-11-16 10:59:27,454 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 235 places, 239 transitions, 499 flow [2022-11-16 10:59:27,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:59:27,485 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;@56f90a3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:59:27,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2022-11-16 10:59:27,516 INFO L130 PetriNetUnfolder]: 4/91 cut-off events. [2022-11-16 10:59:27,516 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:59:27,517 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:27,518 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] [2022-11-16 10:59:27,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-11-16 10:59:27,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:27,525 INFO L85 PathProgramCache]: Analyzing trace with hash -487851126, now seen corresponding path program 1 times [2022-11-16 10:59:27,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:27,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100915007] [2022-11-16 10:59:27,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:27,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:28,047 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 10:59:28,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:28,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100915007] [2022-11-16 10:59:28,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100915007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:28,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:28,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 10:59:28,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033320623] [2022-11-16 10:59:28,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:28,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 10:59:28,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:28,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 10:59:28,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 10:59:28,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 266 [2022-11-16 10:59:28,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 239 transitions, 499 flow. Second operand has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 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 10:59:28,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:28,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 266 [2022-11-16 10:59:28,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:31,050 INFO L130 PetriNetUnfolder]: 4991/8535 cut-off events. [2022-11-16 10:59:31,050 INFO L131 PetriNetUnfolder]: For 2168/2168 co-relation queries the response was YES. [2022-11-16 10:59:31,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16270 conditions, 8535 events. 4991/8535 cut-off events. For 2168/2168 co-relation queries the response was YES. Maximal size of possible extension queue 518. Compared 62005 event pairs, 3048 based on Foata normal form. 1585/6519 useless extension candidates. Maximal degree in co-relation 7796. Up to 3232 conditions per place. [2022-11-16 10:59:31,200 INFO L137 encePairwiseOnDemand]: 238/266 looper letters, 78 selfloop transitions, 9 changer transitions 6/264 dead transitions. [2022-11-16 10:59:31,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 264 transitions, 744 flow [2022-11-16 10:59:31,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 10:59:31,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 10:59:31,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1121 transitions. [2022-11-16 10:59:31,220 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8428571428571429 [2022-11-16 10:59:31,221 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1121 transitions. [2022-11-16 10:59:31,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1121 transitions. [2022-11-16 10:59:31,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:31,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1121 transitions. [2022-11-16 10:59:31,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 224.2) internal successors, (1121), 5 states have internal predecessors, (1121), 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 10:59:31,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 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 10:59:31,246 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 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 10:59:31,248 INFO L175 Difference]: Start difference. First operand has 235 places, 239 transitions, 499 flow. Second operand 5 states and 1121 transitions. [2022-11-16 10:59:31,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 264 transitions, 744 flow [2022-11-16 10:59:31,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 264 transitions, 718 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-16 10:59:31,261 INFO L231 Difference]: Finished difference. Result has 231 places, 225 transitions, 511 flow [2022-11-16 10:59:31,264 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=511, PETRI_PLACES=231, PETRI_TRANSITIONS=225} [2022-11-16 10:59:31,268 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, -4 predicate places. [2022-11-16 10:59:31,268 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 225 transitions, 511 flow [2022-11-16 10:59:31,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 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 10:59:31,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:31,270 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:31,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:59:31,271 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-11-16 10:59:31,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:31,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1085375258, now seen corresponding path program 1 times [2022-11-16 10:59:31,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:31,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548329680] [2022-11-16 10:59:31,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:31,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:31,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:31,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548329680] [2022-11-16 10:59:31,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548329680] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:59:31,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252868297] [2022-11-16 10:59:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:31,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:59:31,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:59:31,561 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:59:31,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 10:59:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:31,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 10:59:31,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:59:31,858 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:31,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 10:59:32,015 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:32,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252868297] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 10:59:32,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 10:59:32,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-16 10:59:32,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698049747] [2022-11-16 10:59:32,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 10:59:32,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 10:59:32,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:32,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 10:59:32,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 10:59:32,029 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 266 [2022-11-16 10:59:32,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 225 transitions, 511 flow. Second operand has 12 states, 12 states have (on average 203.66666666666666) internal successors, (2444), 12 states have internal predecessors, (2444), 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 10:59:32,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:32,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 266 [2022-11-16 10:59:32,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:37,801 INFO L130 PetriNetUnfolder]: 12476/21183 cut-off events. [2022-11-16 10:59:37,802 INFO L131 PetriNetUnfolder]: For 1557/1557 co-relation queries the response was YES. [2022-11-16 10:59:37,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38872 conditions, 21183 events. 12476/21183 cut-off events. For 1557/1557 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 165510 event pairs, 7620 based on Foata normal form. 6/12214 useless extension candidates. Maximal degree in co-relation 30876. Up to 3225 conditions per place. [2022-11-16 10:59:38,126 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 171 selfloop transitions, 40 changer transitions 0/382 dead transitions. [2022-11-16 10:59:38,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 382 transitions, 1329 flow [2022-11-16 10:59:38,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 10:59:38,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 10:59:38,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3835 transitions. [2022-11-16 10:59:38,309 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8009607351712615 [2022-11-16 10:59:38,309 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3835 transitions. [2022-11-16 10:59:38,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3835 transitions. [2022-11-16 10:59:38,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:38,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3835 transitions. [2022-11-16 10:59:38,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 213.05555555555554) internal successors, (3835), 18 states have internal predecessors, (3835), 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 10:59:38,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 266.0) internal successors, (5054), 19 states have internal predecessors, (5054), 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 10:59:38,334 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 266.0) internal successors, (5054), 19 states have internal predecessors, (5054), 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 10:59:38,334 INFO L175 Difference]: Start difference. First operand has 231 places, 225 transitions, 511 flow. Second operand 18 states and 3835 transitions. [2022-11-16 10:59:38,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 382 transitions, 1329 flow [2022-11-16 10:59:38,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 382 transitions, 1324 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 10:59:38,343 INFO L231 Difference]: Finished difference. Result has 245 places, 252 transitions, 744 flow [2022-11-16 10:59:38,344 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=744, PETRI_PLACES=245, PETRI_TRANSITIONS=252} [2022-11-16 10:59:38,345 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, 10 predicate places. [2022-11-16 10:59:38,345 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 252 transitions, 744 flow [2022-11-16 10:59:38,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.66666666666666) internal successors, (2444), 12 states have internal predecessors, (2444), 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 10:59:38,347 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:38,348 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:38,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 10:59:38,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:59:38,554 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-11-16 10:59:38,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:38,555 INFO L85 PathProgramCache]: Analyzing trace with hash 713106198, now seen corresponding path program 1 times [2022-11-16 10:59:38,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:38,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245395094] [2022-11-16 10:59:38,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:38,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:38,771 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:38,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:38,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245395094] [2022-11-16 10:59:38,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245395094] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:59:38,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071460396] [2022-11-16 10:59:38,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:38,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:59:38,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:59:38,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:59:38,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 10:59:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:38,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 10:59:38,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:59:38,990 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:38,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:59:38,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071460396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:38,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 10:59:38,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 10:59:38,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518191351] [2022-11-16 10:59:38,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:38,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:59:38,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:38,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:59:38,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:59:39,000 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 266 [2022-11-16 10:59:39,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 252 transitions, 744 flow. Second operand has 6 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 states have internal predecessors, (1220), 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 10:59:39,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:39,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 266 [2022-11-16 10:59:39,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:43,443 INFO L130 PetriNetUnfolder]: 12476/21175 cut-off events. [2022-11-16 10:59:43,443 INFO L131 PetriNetUnfolder]: For 1651/1651 co-relation queries the response was YES. [2022-11-16 10:59:43,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38909 conditions, 21175 events. 12476/21175 cut-off events. For 1651/1651 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 165605 event pairs, 7620 based on Foata normal form. 8/12208 useless extension candidates. Maximal degree in co-relation 31101. Up to 12856 conditions per place. [2022-11-16 10:59:43,725 INFO L137 encePairwiseOnDemand]: 255/266 looper letters, 79 selfloop transitions, 27 changer transitions 0/277 dead transitions. [2022-11-16 10:59:43,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 277 transitions, 980 flow [2022-11-16 10:59:43,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 10:59:43,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 10:59:43,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1494 transitions. [2022-11-16 10:59:43,730 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8023630504833512 [2022-11-16 10:59:43,731 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1494 transitions. [2022-11-16 10:59:43,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1494 transitions. [2022-11-16 10:59:43,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:43,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1494 transitions. [2022-11-16 10:59:43,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 213.42857142857142) internal successors, (1494), 7 states have internal predecessors, (1494), 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 10:59:43,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 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 10:59:43,742 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 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 10:59:43,742 INFO L175 Difference]: Start difference. First operand has 245 places, 252 transitions, 744 flow. Second operand 7 states and 1494 transitions. [2022-11-16 10:59:43,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 277 transitions, 980 flow [2022-11-16 10:59:43,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 277 transitions, 906 flow, removed 26 selfloop flow, removed 5 redundant places. [2022-11-16 10:59:43,756 INFO L231 Difference]: Finished difference. Result has 240 places, 244 transitions, 670 flow [2022-11-16 10:59:43,757 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=670, PETRI_PLACES=240, PETRI_TRANSITIONS=244} [2022-11-16 10:59:43,760 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, 5 predicate places. [2022-11-16 10:59:43,761 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 244 transitions, 670 flow [2022-11-16 10:59:43,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 states have internal predecessors, (1220), 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 10:59:43,762 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:43,762 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:43,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 10:59:43,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:59:43,971 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-11-16 10:59:43,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:43,972 INFO L85 PathProgramCache]: Analyzing trace with hash -534467958, now seen corresponding path program 2 times [2022-11-16 10:59:43,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:43,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217730579] [2022-11-16 10:59:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:43,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:44,549 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:59:44,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:44,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217730579] [2022-11-16 10:59:44,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217730579] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:59:44,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185784921] [2022-11-16 10:59:44,551 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 10:59:44,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:59:44,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:59:44,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:59:44,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 10:59:44,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 10:59:44,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 10:59:44,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 10:59:44,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:59:44,953 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 10:59:44,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 10:59:45,189 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 10:59:45,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185784921] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 10:59:45,190 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 10:59:45,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-11-16 10:59:45,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403399727] [2022-11-16 10:59:45,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 10:59:45,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 10:59:45,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:45,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 10:59:45,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-16 10:59:45,198 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 266 [2022-11-16 10:59:45,204 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 244 transitions, 670 flow. Second operand has 18 states, 18 states have (on average 189.61111111111111) internal successors, (3413), 18 states have internal predecessors, (3413), 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 10:59:45,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:45,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 266 [2022-11-16 10:59:45,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:59:50,449 INFO L130 PetriNetUnfolder]: 10487/18863 cut-off events. [2022-11-16 10:59:50,449 INFO L131 PetriNetUnfolder]: For 2072/2072 co-relation queries the response was YES. [2022-11-16 10:59:50,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34117 conditions, 18863 events. 10487/18863 cut-off events. For 2072/2072 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 148183 event pairs, 6615 based on Foata normal form. 4/12560 useless extension candidates. Maximal degree in co-relation 28926. Up to 2359 conditions per place. [2022-11-16 10:59:50,890 INFO L137 encePairwiseOnDemand]: 244/266 looper letters, 219 selfloop transitions, 65 changer transitions 0/440 dead transitions. [2022-11-16 10:59:50,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 440 transitions, 1737 flow [2022-11-16 10:59:50,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 10:59:50,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-11-16 10:59:50,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 9416 transitions. [2022-11-16 10:59:50,913 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7224182906245205 [2022-11-16 10:59:50,913 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 9416 transitions. [2022-11-16 10:59:50,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 9416 transitions. [2022-11-16 10:59:50,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:59:50,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 9416 transitions. [2022-11-16 10:59:50,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 192.16326530612244) internal successors, (9416), 49 states have internal predecessors, (9416), 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 10:59:50,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 266.0) internal successors, (13300), 50 states have internal predecessors, (13300), 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 10:59:50,984 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 266.0) internal successors, (13300), 50 states have internal predecessors, (13300), 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 10:59:50,985 INFO L175 Difference]: Start difference. First operand has 240 places, 244 transitions, 670 flow. Second operand 49 states and 9416 transitions. [2022-11-16 10:59:50,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 440 transitions, 1737 flow [2022-11-16 10:59:50,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 440 transitions, 1694 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 10:59:51,004 INFO L231 Difference]: Finished difference. Result has 284 places, 267 transitions, 881 flow [2022-11-16 10:59:51,004 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=881, PETRI_PLACES=284, PETRI_TRANSITIONS=267} [2022-11-16 10:59:51,006 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, 49 predicate places. [2022-11-16 10:59:51,006 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 267 transitions, 881 flow [2022-11-16 10:59:51,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 189.61111111111111) internal successors, (3413), 18 states have internal predecessors, (3413), 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 10:59:51,008 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:59:51,009 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, 1, 1, 1, 1, 1, 1, 1, 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 10:59:51,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-16 10:59:51,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35773bbe-580f-434e-a456-f59ae5e0269c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:59:51,214 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-11-16 10:59:51,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:59:51,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1959665964, now seen corresponding path program 1 times [2022-11-16 10:59:51,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:59:51,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458284714] [2022-11-16 10:59:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:59:51,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:59:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:59:51,450 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 10:59:51,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:59:51,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458284714] [2022-11-16 10:59:51,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458284714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:59:51,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:59:51,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:59:51,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584167955] [2022-11-16 10:59:51,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:59:51,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:59:51,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:59:51,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:59:51,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:59:51,455 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 266 [2022-11-16 10:59:51,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 267 transitions, 881 flow. Second operand has 6 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 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 10:59:51,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:59:51,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 266 [2022-11-16 10:59:51,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:00:05,439 INFO L130 PetriNetUnfolder]: 46726/80190 cut-off events. [2022-11-16 11:00:05,439 INFO L131 PetriNetUnfolder]: For 1608/1664 co-relation queries the response was YES. [2022-11-16 11:00:05,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148909 conditions, 80190 events. 46726/80190 cut-off events. For 1608/1664 co-relation queries the response was YES. Maximal size of possible extension queue 1318. Compared 709397 event pairs, 28007 based on Foata normal form. 0/49852 useless extension candidates. Maximal degree in co-relation 148611. Up to 29624 conditions per place. [2022-11-16 11:00:06,112 INFO L137 encePairwiseOnDemand]: 259/266 looper letters, 66 selfloop transitions, 6 changer transitions 0/300 dead transitions. [2022-11-16 11:00:06,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 300 transitions, 1099 flow [2022-11-16 11:00:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:00:06,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:00:06,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1315 transitions. [2022-11-16 11:00:06,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8239348370927319 [2022-11-16 11:00:06,116 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1315 transitions. [2022-11-16 11:00:06,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1315 transitions. [2022-11-16 11:00:06,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:00:06,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1315 transitions. [2022-11-16 11:00:06,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 219.16666666666666) internal successors, (1315), 6 states have internal predecessors, (1315), 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 11:00:06,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 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 11:00:06,124 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 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 11:00:06,125 INFO L175 Difference]: Start difference. First operand has 284 places, 267 transitions, 881 flow. Second operand 6 states and 1315 transitions. [2022-11-16 11:00:06,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 300 transitions, 1099 flow [2022-11-16 11:00:06,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 300 transitions, 1016 flow, removed 9 selfloop flow, removed 15 redundant places. [2022-11-16 11:00:06,133 INFO L231 Difference]: Finished difference. Result has 273 places, 266 transitions, 808 flow [2022-11-16 11:00:06,133 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=808, PETRI_PLACES=273, PETRI_TRANSITIONS=266} [2022-11-16 11:00:06,134 INFO L288 CegarLoopForPetriNet]: 235 programPoint places, 38 predicate places. [2022-11-16 11:00:06,134 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 266 transitions, 808 flow [2022-11-16 11:00:06,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 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 11:00:06,135 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:00:06,135 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:06,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:00:06,136 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-11-16 11:00:06,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:00:06,136 INFO L85 PathProgramCache]: Analyzing trace with hash 620103595, now seen corresponding path program 1 times [2022-11-16 11:00:06,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:00:06,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925821404] [2022-11-16 11:00:06,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:00:06,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:00:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:00:06,228 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 11:00:06,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:00:06,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925821404] [2022-11-16 11:00:06,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925821404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:00:06,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:00:06,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:00:06,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260069310] [2022-11-16 11:00:06,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:00:06,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:00:06,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:00:06,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:00:06,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:00:06,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 266 [2022-11-16 11:00:06,236 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 266 transitions, 808 flow. Second operand has 4 states, 4 states have (on average 216.75) internal successors, (867), 4 states have internal predecessors, (867), 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 11:00:06,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:00:06,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 266 [2022-11-16 11:00:06,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand