./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/systemc/token_ring.02.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/token_ring.02.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44ef362a593e25f5681bc4a034b065cd86559bd3dd750386bca2a1f270891ccd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:51:07,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:51:07,483 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 04:51:07,493 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:51:07,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:51:07,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:51:07,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:51:07,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:51:07,550 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:51:07,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:51:07,555 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:51:07,556 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:51:07,556 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:51:07,558 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:51:07,559 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:51:07,559 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:51:07,560 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:51:07,560 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:51:07,560 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:51:07,561 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:51:07,561 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:51:07,564 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:51:07,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:51:07,565 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:51:07,566 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:51:07,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:51:07,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:51:07,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:51:07,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:51:07,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:51:07,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:51:07,569 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:51:07,569 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:51:07,570 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:51:07,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:51:07,570 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:51:07,570 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:51:07,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:51:07,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:07,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:51:07,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:51:07,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:51:07,572 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:51:07,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:51:07,573 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:51:07,573 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:51:07,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:51:07,574 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44ef362a593e25f5681bc4a034b065cd86559bd3dd750386bca2a1f270891ccd [2023-11-19 04:51:07,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:51:07,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:51:07,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:51:07,862 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:51:07,863 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:51:07,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/systemc/token_ring.02.cil-1.c [2023-11-19 04:51:11,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:51:11,504 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:51:11,505 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/sv-benchmarks/c/systemc/token_ring.02.cil-1.c [2023-11-19 04:51:11,518 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/data/333faf126/9578ebd573084c29af3852ec8e07444e/FLAGc41b0f345 [2023-11-19 04:51:11,535 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/data/333faf126/9578ebd573084c29af3852ec8e07444e [2023-11-19 04:51:11,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:51:11,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:51:11,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:51:11,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:51:11,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:51:11,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:11,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad7da09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11, skipping insertion in model container [2023-11-19 04:51:11,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:11,594 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:51:11,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:51:11,847 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:51:11,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:51:11,921 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:51:11,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11 WrapperNode [2023-11-19 04:51:11,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:51:11,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:51:11,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:51:11,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:51:11,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:11,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:11,987 INFO L138 Inliner]: procedures = 32, calls = 38, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 286 [2023-11-19 04:51:11,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:51:11,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:51:11,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:51:11,989 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:51:12,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:12,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:12,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:12,008 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:12,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:12,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:12,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:12,040 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:12,044 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:51:12,046 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:51:12,046 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:51:12,046 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:51:12,047 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11" (1/1) ... [2023-11-19 04:51:12,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:12,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:51:12,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:51:12,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:51:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:51:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-11-19 04:51:12,132 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-11-19 04:51:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-11-19 04:51:12,132 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-11-19 04:51:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-11-19 04:51:12,133 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-11-19 04:51:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-11-19 04:51:12,133 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-11-19 04:51:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-11-19 04:51:12,133 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-11-19 04:51:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:51:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-11-19 04:51:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-11-19 04:51:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:51:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:51:12,218 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:51:12,221 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:51:12,679 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:51:12,998 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:51:12,998 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 04:51:13,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:13 BoogieIcfgContainer [2023-11-19 04:51:13,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:51:13,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:51:13,010 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:51:13,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:51:13,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:51:11" (1/3) ... [2023-11-19 04:51:13,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c8b314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:51:13, skipping insertion in model container [2023-11-19 04:51:13,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:11" (2/3) ... [2023-11-19 04:51:13,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c8b314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:51:13, skipping insertion in model container [2023-11-19 04:51:13,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:13" (3/3) ... [2023-11-19 04:51:13,020 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.02.cil-1.c [2023-11-19 04:51:13,045 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:51:13,045 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 04:51:13,097 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:51:13,104 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@14879457, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:51:13,104 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-19 04:51:13,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 68 states have internal predecessors, (91), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 04:51:13,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 04:51:13,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:13,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:13,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 04:51:13,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:13,130 INFO L85 PathProgramCache]: Analyzing trace with hash 378288871, now seen corresponding path program 1 times [2023-11-19 04:51:13,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:13,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825078874] [2023-11-19 04:51:13,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:13,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:13,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:51:13,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:13,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825078874] [2023-11-19 04:51:13,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825078874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:13,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:13,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:51:13,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277024910] [2023-11-19 04:51:13,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:13,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:51:13,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:13,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:51:13,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:51:13,567 INFO L87 Difference]: Start difference. First operand has 90 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 68 states have internal predecessors, (91), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 04:51:13,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:13,836 INFO L93 Difference]: Finished difference Result 253 states and 351 transitions. [2023-11-19 04:51:13,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:51:13,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2023-11-19 04:51:13,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:13,850 INFO L225 Difference]: With dead ends: 253 [2023-11-19 04:51:13,850 INFO L226 Difference]: Without dead ends: 164 [2023-11-19 04:51:13,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:51:13,859 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 205 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:13,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 302 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:51:13,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-19 04:51:13,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 159. [2023-11-19 04:51:13,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 113 states have (on average 1.407079646017699) internal successors, (159), 120 states have internal predecessors, (159), 28 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 04:51:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 215 transitions. [2023-11-19 04:51:13,930 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 215 transitions. Word has length 35 [2023-11-19 04:51:13,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:13,931 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 215 transitions. [2023-11-19 04:51:13,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 04:51:13,931 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 215 transitions. [2023-11-19 04:51:13,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 04:51:13,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:13,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:13,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:51:13,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 04:51:13,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:13,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1079238761, now seen corresponding path program 1 times [2023-11-19 04:51:13,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:13,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005026372] [2023-11-19 04:51:13,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:13,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:14,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:51:14,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:14,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005026372] [2023-11-19 04:51:14,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005026372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:14,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:14,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:51:14,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149589196] [2023-11-19 04:51:14,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:14,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:51:14,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:14,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:51:14,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:51:14,082 INFO L87 Difference]: Start difference. First operand 159 states and 215 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 04:51:14,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:14,647 INFO L93 Difference]: Finished difference Result 859 states and 1209 transitions. [2023-11-19 04:51:14,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:51:14,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2023-11-19 04:51:14,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:14,671 INFO L225 Difference]: With dead ends: 859 [2023-11-19 04:51:14,671 INFO L226 Difference]: Without dead ends: 705 [2023-11-19 04:51:14,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:51:14,682 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 415 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:14,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 395 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:51:14,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2023-11-19 04:51:14,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 665. [2023-11-19 04:51:14,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 487 states have (on average 1.353182751540041) internal successors, (659), 500 states have internal predecessors, (659), 112 states have call successors, (112), 60 states have call predecessors, (112), 60 states have return successors, (154), 105 states have call predecessors, (154), 112 states have call successors, (154) [2023-11-19 04:51:14,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 925 transitions. [2023-11-19 04:51:14,793 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 925 transitions. Word has length 36 [2023-11-19 04:51:14,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:14,793 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 925 transitions. [2023-11-19 04:51:14,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 04:51:14,794 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 925 transitions. [2023-11-19 04:51:14,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 04:51:14,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:14,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:14,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:51:14,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 04:51:14,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:14,797 INFO L85 PathProgramCache]: Analyzing trace with hash -867172006, now seen corresponding path program 1 times [2023-11-19 04:51:14,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:14,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372712368] [2023-11-19 04:51:14,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:14,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:15,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:51:15,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:15,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372712368] [2023-11-19 04:51:15,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372712368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:15,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:15,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:51:15,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499076200] [2023-11-19 04:51:15,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:15,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:51:15,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:15,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:51:15,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:51:15,137 INFO L87 Difference]: Start difference. First operand 665 states and 925 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 04:51:15,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:15,592 INFO L93 Difference]: Finished difference Result 1747 states and 2421 transitions. [2023-11-19 04:51:15,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:51:15,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2023-11-19 04:51:15,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:15,612 INFO L225 Difference]: With dead ends: 1747 [2023-11-19 04:51:15,619 INFO L226 Difference]: Without dead ends: 1088 [2023-11-19 04:51:15,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:51:15,630 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 265 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:15,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 256 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:51:15,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2023-11-19 04:51:15,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1025. [2023-11-19 04:51:15,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 759 states have (on average 1.326745718050066) internal successors, (1007), 773 states have internal predecessors, (1007), 162 states have call successors, (162), 96 states have call predecessors, (162), 98 states have return successors, (223), 156 states have call predecessors, (223), 162 states have call successors, (223) [2023-11-19 04:51:15,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1392 transitions. [2023-11-19 04:51:15,816 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1392 transitions. Word has length 41 [2023-11-19 04:51:15,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:15,817 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1392 transitions. [2023-11-19 04:51:15,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 04:51:15,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1392 transitions. [2023-11-19 04:51:15,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 04:51:15,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:15,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:15,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:51:15,826 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 04:51:15,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:15,829 INFO L85 PathProgramCache]: Analyzing trace with hash -950848506, now seen corresponding path program 1 times [2023-11-19 04:51:15,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:15,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94212553] [2023-11-19 04:51:15,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:15,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:51:15,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:15,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94212553] [2023-11-19 04:51:15,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94212553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:15,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:15,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:51:15,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208988321] [2023-11-19 04:51:15,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:15,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:51:15,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:51:15,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:51:15,921 INFO L87 Difference]: Start difference. First operand 1025 states and 1392 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 04:51:16,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:16,183 INFO L93 Difference]: Finished difference Result 2233 states and 3064 transitions. [2023-11-19 04:51:16,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:51:16,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2023-11-19 04:51:16,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:16,197 INFO L225 Difference]: With dead ends: 2233 [2023-11-19 04:51:16,198 INFO L226 Difference]: Without dead ends: 1602 [2023-11-19 04:51:16,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:51:16,202 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 83 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:16,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 197 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:51:16,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2023-11-19 04:51:16,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1196. [2023-11-19 04:51:16,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 884 states have (on average 1.2986425339366516) internal successors, (1148), 896 states have internal predecessors, (1148), 190 states have call successors, (190), 114 states have call predecessors, (190), 116 states have return successors, (249), 186 states have call predecessors, (249), 190 states have call successors, (249) [2023-11-19 04:51:16,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1587 transitions. [2023-11-19 04:51:16,390 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1587 transitions. Word has length 43 [2023-11-19 04:51:16,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:16,391 INFO L495 AbstractCegarLoop]: Abstraction has 1196 states and 1587 transitions. [2023-11-19 04:51:16,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 04:51:16,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1587 transitions. [2023-11-19 04:51:16,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 04:51:16,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:16,396 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2023-11-19 04:51:16,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:51:16,396 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 04:51:16,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:16,397 INFO L85 PathProgramCache]: Analyzing trace with hash -261500689, now seen corresponding path program 1 times [2023-11-19 04:51:16,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:16,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170138033] [2023-11-19 04:51:16,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:16,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:51:16,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:16,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170138033] [2023-11-19 04:51:16,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170138033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:16,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:16,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:51:16,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905173069] [2023-11-19 04:51:16,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:16,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:51:16,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:16,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:51:16,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:51:16,555 INFO L87 Difference]: Start difference. First operand 1196 states and 1587 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 04:51:16,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:16,738 INFO L93 Difference]: Finished difference Result 2481 states and 3340 transitions. [2023-11-19 04:51:16,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:51:16,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 53 [2023-11-19 04:51:16,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:16,751 INFO L225 Difference]: With dead ends: 2481 [2023-11-19 04:51:16,751 INFO L226 Difference]: Without dead ends: 1465 [2023-11-19 04:51:16,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:51:16,756 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 52 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:16,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 260 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:51:16,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2023-11-19 04:51:16,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1288. [2023-11-19 04:51:16,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 964 states have (on average 1.3049792531120332) internal successors, (1258), 976 states have internal predecessors, (1258), 196 states have call successors, (196), 120 states have call predecessors, (196), 122 states have return successors, (255), 192 states have call predecessors, (255), 196 states have call successors, (255) [2023-11-19 04:51:16,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1709 transitions. [2023-11-19 04:51:16,929 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1709 transitions. Word has length 53 [2023-11-19 04:51:16,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:16,930 INFO L495 AbstractCegarLoop]: Abstraction has 1288 states and 1709 transitions. [2023-11-19 04:51:16,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 04:51:16,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1709 transitions. [2023-11-19 04:51:16,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 04:51:16,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:16,934 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2023-11-19 04:51:16,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:51:16,935 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 04:51:16,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:16,936 INFO L85 PathProgramCache]: Analyzing trace with hash 161472319, now seen corresponding path program 1 times [2023-11-19 04:51:16,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:16,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382052163] [2023-11-19 04:51:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:16,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 04:51:17,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:17,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382052163] [2023-11-19 04:51:17,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382052163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:17,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:17,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:51:17,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918275145] [2023-11-19 04:51:17,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:17,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:51:17,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:17,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:51:17,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:51:17,192 INFO L87 Difference]: Start difference. First operand 1288 states and 1709 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 04:51:17,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:17,714 INFO L93 Difference]: Finished difference Result 3562 states and 4715 transitions. [2023-11-19 04:51:17,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:51:17,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 54 [2023-11-19 04:51:17,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:17,732 INFO L225 Difference]: With dead ends: 3562 [2023-11-19 04:51:17,732 INFO L226 Difference]: Without dead ends: 2280 [2023-11-19 04:51:17,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:51:17,737 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 252 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:17,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 274 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:51:17,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2023-11-19 04:51:17,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 2208. [2023-11-19 04:51:17,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1638 states have (on average 1.2844932844932846) internal successors, (2104), 1655 states have internal predecessors, (2104), 346 states have call successors, (346), 214 states have call predecessors, (346), 218 states have return successors, (455), 339 states have call predecessors, (455), 346 states have call successors, (455) [2023-11-19 04:51:17,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 2905 transitions. [2023-11-19 04:51:17,997 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 2905 transitions. Word has length 54 [2023-11-19 04:51:17,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:17,997 INFO L495 AbstractCegarLoop]: Abstraction has 2208 states and 2905 transitions. [2023-11-19 04:51:17,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 04:51:17,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 2905 transitions. [2023-11-19 04:51:17,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 04:51:18,000 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:18,000 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2023-11-19 04:51:18,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:51:18,001 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 04:51:18,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:18,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2106033862, now seen corresponding path program 1 times [2023-11-19 04:51:18,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:18,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716123983] [2023-11-19 04:51:18,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:18,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:18,087 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:51:18,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:18,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716123983] [2023-11-19 04:51:18,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716123983] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:51:18,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133678775] [2023-11-19 04:51:18,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:18,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:51:18,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:51:18,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:51:18,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:51:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:18,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:51:18,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:51:18,408 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 04:51:18,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:51:18,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133678775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:18,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 04:51:18,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-11-19 04:51:18,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963290153] [2023-11-19 04:51:18,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:18,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:51:18,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:18,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:51:18,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:51:18,411 INFO L87 Difference]: Start difference. First operand 2208 states and 2905 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 04:51:18,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:18,668 INFO L93 Difference]: Finished difference Result 2210 states and 2905 transitions. [2023-11-19 04:51:18,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:51:18,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 58 [2023-11-19 04:51:18,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:18,686 INFO L225 Difference]: With dead ends: 2210 [2023-11-19 04:51:18,687 INFO L226 Difference]: Without dead ends: 2208 [2023-11-19 04:51:18,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:51:18,689 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 53 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:18,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 199 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:51:18,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2023-11-19 04:51:18,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2208. [2023-11-19 04:51:18,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1638 states have (on average 1.2808302808302807) internal successors, (2098), 1655 states have internal predecessors, (2098), 346 states have call successors, (346), 214 states have call predecessors, (346), 218 states have return successors, (455), 339 states have call predecessors, (455), 346 states have call successors, (455) [2023-11-19 04:51:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 2899 transitions. [2023-11-19 04:51:18,928 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 2899 transitions. Word has length 58 [2023-11-19 04:51:18,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:18,929 INFO L495 AbstractCegarLoop]: Abstraction has 2208 states and 2899 transitions. [2023-11-19 04:51:18,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 04:51:18,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 2899 transitions. [2023-11-19 04:51:18,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 04:51:18,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:18,931 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2023-11-19 04:51:18,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:51:19,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 04:51:19,158 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 04:51:19,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:19,158 INFO L85 PathProgramCache]: Analyzing trace with hash 862540672, now seen corresponding path program 1 times [2023-11-19 04:51:19,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:19,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744530179] [2023-11-19 04:51:19,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:19,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:19,269 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:51:19,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:19,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744530179] [2023-11-19 04:51:19,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744530179] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:51:19,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392384439] [2023-11-19 04:51:19,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:19,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:51:19,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:51:19,272 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:51:19,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 04:51:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:19,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:51:19,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:51:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 04:51:19,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:51:19,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392384439] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:19,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 04:51:19,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-11-19 04:51:19,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135118076] [2023-11-19 04:51:19,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:19,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:51:19,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:19,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:51:19,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:51:19,501 INFO L87 Difference]: Start difference. First operand 2208 states and 2899 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 04:51:19,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:19,761 INFO L93 Difference]: Finished difference Result 2788 states and 3641 transitions. [2023-11-19 04:51:19,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:51:19,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2023-11-19 04:51:19,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:19,785 INFO L225 Difference]: With dead ends: 2788 [2023-11-19 04:51:19,785 INFO L226 Difference]: Without dead ends: 2786 [2023-11-19 04:51:19,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:51:19,790 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 42 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:19,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 193 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:51:19,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2023-11-19 04:51:20,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2756. [2023-11-19 04:51:20,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 2052 states have (on average 1.273879142300195) internal successors, (2614), 2069 states have internal predecessors, (2614), 428 states have call successors, (428), 266 states have call predecessors, (428), 270 states have return successors, (553), 421 states have call predecessors, (553), 428 states have call successors, (553) [2023-11-19 04:51:20,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 3595 transitions. [2023-11-19 04:51:20,100 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 3595 transitions. Word has length 59 [2023-11-19 04:51:20,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:20,100 INFO L495 AbstractCegarLoop]: Abstraction has 2756 states and 3595 transitions. [2023-11-19 04:51:20,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 04:51:20,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 3595 transitions. [2023-11-19 04:51:20,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 04:51:20,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:20,104 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-19 04:51:20,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:51:20,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:51:20,325 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 04:51:20,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:20,325 INFO L85 PathProgramCache]: Analyzing trace with hash 654579902, now seen corresponding path program 1 times [2023-11-19 04:51:20,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:20,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542069592] [2023-11-19 04:51:20,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:20,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:20,431 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 04:51:20,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:20,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542069592] [2023-11-19 04:51:20,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542069592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:20,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:20,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:51:20,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956457843] [2023-11-19 04:51:20,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:20,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:51:20,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:20,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:51:20,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:51:20,434 INFO L87 Difference]: Start difference. First operand 2756 states and 3595 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 04:51:20,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:20,709 INFO L93 Difference]: Finished difference Result 4493 states and 5947 transitions. [2023-11-19 04:51:20,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:51:20,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2023-11-19 04:51:20,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:20,737 INFO L225 Difference]: With dead ends: 4493 [2023-11-19 04:51:20,737 INFO L226 Difference]: Without dead ends: 3124 [2023-11-19 04:51:20,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:51:20,745 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 46 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:20,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 243 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:51:20,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2023-11-19 04:51:21,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 2943. [2023-11-19 04:51:21,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2943 states, 2213 states have (on average 1.2837776773610483) internal successors, (2841), 2230 states have internal predecessors, (2841), 441 states have call successors, (441), 279 states have call predecessors, (441), 283 states have return successors, (566), 434 states have call predecessors, (566), 441 states have call successors, (566) [2023-11-19 04:51:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2943 states to 2943 states and 3848 transitions. [2023-11-19 04:51:21,028 INFO L78 Accepts]: Start accepts. Automaton has 2943 states and 3848 transitions. Word has length 67 [2023-11-19 04:51:21,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:21,030 INFO L495 AbstractCegarLoop]: Abstraction has 2943 states and 3848 transitions. [2023-11-19 04:51:21,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 04:51:21,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2943 states and 3848 transitions. [2023-11-19 04:51:21,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 04:51:21,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:21,033 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-19 04:51:21,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 04:51:21,034 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 04:51:21,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:21,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1437505025, now seen corresponding path program 1 times [2023-11-19 04:51:21,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:21,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791106013] [2023-11-19 04:51:21,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:21,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:51:21,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:21,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791106013] [2023-11-19 04:51:21,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791106013] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:51:21,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086318409] [2023-11-19 04:51:21,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:21,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:51:21,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:51:21,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:51:21,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 04:51:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:21,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:51:21,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:51:21,445 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 04:51:21,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:51:21,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086318409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:21,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 04:51:21,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-11-19 04:51:21,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710374235] [2023-11-19 04:51:21,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:21,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:51:21,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:21,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:51:21,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:51:21,448 INFO L87 Difference]: Start difference. First operand 2943 states and 3848 transitions. Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 04:51:21,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:21,702 INFO L93 Difference]: Finished difference Result 2943 states and 3848 transitions. [2023-11-19 04:51:21,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:51:21,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2023-11-19 04:51:21,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:21,724 INFO L225 Difference]: With dead ends: 2943 [2023-11-19 04:51:21,724 INFO L226 Difference]: Without dead ends: 2941 [2023-11-19 04:51:21,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:51:21,727 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 90 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:21,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 94 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:51:21,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2023-11-19 04:51:22,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2941. [2023-11-19 04:51:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2941 states, 2213 states have (on average 1.2783551739719838) internal successors, (2829), 2228 states have internal predecessors, (2829), 441 states have call successors, (441), 279 states have call predecessors, (441), 283 states have return successors, (566), 434 states have call predecessors, (566), 441 states have call successors, (566) [2023-11-19 04:51:22,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2941 states to 2941 states and 3836 transitions. [2023-11-19 04:51:22,118 INFO L78 Accepts]: Start accepts. Automaton has 2941 states and 3836 transitions. Word has length 72 [2023-11-19 04:51:22,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:22,119 INFO L495 AbstractCegarLoop]: Abstraction has 2941 states and 3836 transitions. [2023-11-19 04:51:22,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 04:51:22,120 INFO L276 IsEmpty]: Start isEmpty. Operand 2941 states and 3836 transitions. [2023-11-19 04:51:22,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-19 04:51:22,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:22,128 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-19 04:51:22,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:51:22,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 04:51:22,341 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 04:51:22,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:22,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1612982471, now seen corresponding path program 1 times [2023-11-19 04:51:22,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:22,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596146679] [2023-11-19 04:51:22,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:22,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:22,499 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:51:22,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:51:22,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596146679] [2023-11-19 04:51:22,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596146679] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:51:22,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954761808] [2023-11-19 04:51:22,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:22,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:51:22,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:51:22,501 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:51:22,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 04:51:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:22,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 04:51:22,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:51:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:51:22,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:51:22,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954761808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:22,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 04:51:22,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 6 [2023-11-19 04:51:22,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348560979] [2023-11-19 04:51:22,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:22,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:51:22,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:51:22,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:51:22,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:51:22,783 INFO L87 Difference]: Start difference. First operand 2941 states and 3836 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 04:51:23,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:23,553 INFO L93 Difference]: Finished difference Result 7363 states and 9593 transitions. [2023-11-19 04:51:23,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:51:23,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2023-11-19 04:51:23,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:23,587 INFO L225 Difference]: With dead ends: 7363 [2023-11-19 04:51:23,587 INFO L226 Difference]: Without dead ends: 4428 [2023-11-19 04:51:23,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-19 04:51:23,599 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 232 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:23,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 266 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:51:23,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4428 states. [2023-11-19 04:51:24,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4428 to 3957. [2023-11-19 04:51:24,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3957 states, 2968 states have (on average 1.2587601078167117) internal successors, (3736), 2987 states have internal predecessors, (3736), 599 states have call successors, (599), 382 states have call predecessors, (599), 386 states have return successors, (751), 588 states have call predecessors, (751), 599 states have call successors, (751) [2023-11-19 04:51:24,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3957 states to 3957 states and 5086 transitions. [2023-11-19 04:51:24,221 INFO L78 Accepts]: Start accepts. Automaton has 3957 states and 5086 transitions. Word has length 73 [2023-11-19 04:51:24,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:24,221 INFO L495 AbstractCegarLoop]: Abstraction has 3957 states and 5086 transitions. [2023-11-19 04:51:24,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 04:51:24,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3957 states and 5086 transitions. [2023-11-19 04:51:24,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 04:51:24,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:24,228 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-19 04:51:24,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:51:24,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 04:51:24,440 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 04:51:24,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:24,441 INFO L85 PathProgramCache]: Analyzing trace with hash 491848369, now seen corresponding path program 1 times [2023-11-19 04:51:24,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:24,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840483462] [2023-11-19 04:51:24,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:24,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:51:24,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:51:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:51:24,533 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:51:24,534 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:51:24,535 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-19 04:51:24,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-19 04:51:24,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-19 04:51:24,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-19 04:51:24,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-19 04:51:24,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-19 04:51:24,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 04:51:24,542 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:24,548 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:51:24,619 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-19 04:51:24,629 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-19 04:51:24,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:51:24 BoogieIcfgContainer [2023-11-19 04:51:24,665 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:51:24,666 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:51:24,666 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:51:24,666 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:51:24,667 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:13" (3/4) ... [2023-11-19 04:51:24,667 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:51:24,686 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-19 04:51:24,687 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-19 04:51:24,758 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:51:24,758 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:51:24,759 INFO L158 Benchmark]: Toolchain (without parser) took 13219.80ms. Allocated memory was 201.3MB in the beginning and 352.3MB in the end (delta: 151.0MB). Free memory was 155.5MB in the beginning and 269.3MB in the end (delta: -113.8MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2023-11-19 04:51:24,760 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory was 76.9MB in the beginning and 76.8MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:51:24,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.14ms. Allocated memory is still 201.3MB. Free memory was 155.1MB in the beginning and 141.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:51:24,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.21ms. Allocated memory is still 201.3MB. Free memory was 141.4MB in the beginning and 139.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:51:24,761 INFO L158 Benchmark]: Boogie Preprocessor took 56.37ms. Allocated memory is still 201.3MB. Free memory was 139.3MB in the beginning and 137.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:51:24,762 INFO L158 Benchmark]: RCFGBuilder took 959.47ms. Allocated memory is still 201.3MB. Free memory was 137.6MB in the beginning and 157.5MB in the end (delta: -20.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 04:51:24,762 INFO L158 Benchmark]: TraceAbstraction took 11655.15ms. Allocated memory was 201.3MB in the beginning and 352.3MB in the end (delta: 151.0MB). Free memory was 156.8MB in the beginning and 276.7MB in the end (delta: -119.9MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-11-19 04:51:24,763 INFO L158 Benchmark]: Witness Printer took 93.03ms. Allocated memory is still 352.3MB. Free memory was 276.7MB in the beginning and 269.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 04:51:24,765 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory was 76.9MB in the beginning and 76.8MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.14ms. Allocated memory is still 201.3MB. Free memory was 155.1MB in the beginning and 141.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.21ms. Allocated memory is still 201.3MB. Free memory was 141.4MB in the beginning and 139.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.37ms. Allocated memory is still 201.3MB. Free memory was 139.3MB in the beginning and 137.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 959.47ms. Allocated memory is still 201.3MB. Free memory was 137.6MB in the beginning and 157.5MB in the end (delta: -20.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11655.15ms. Allocated memory was 201.3MB in the beginning and 352.3MB in the end (delta: 151.0MB). Free memory was 156.8MB in the beginning and 276.7MB in the end (delta: -119.9MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * Witness Printer took 93.03ms. Allocated memory is still 352.3MB. Free memory was 276.7MB in the beginning and 269.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 113]: integer overflow possible integer overflow possible We found a FailurePath: [L24] int m_pc = 0; [L25] int t1_pc = 0; [L26] int t2_pc = 0; [L27] int m_st ; [L28] int t1_st ; [L29] int t2_st ; [L30] int m_i ; [L31] int t1_i ; [L32] int t2_i ; [L33] int M_E = 2; [L34] int T1_E = 2; [L35] int T2_E = 2; [L36] int E_M = 2; [L37] int E_1 = 2; [L38] int E_2 = 2; [L43] int token ; [L45] int local ; [L598] int __retres1 ; [L602] CALL init_model() [L512] m_i = 1 [L513] t1_i = 1 [L514] t2_i = 1 [L602] RET init_model() [L603] CALL start_simulation() [L539] int kernel_st ; [L540] int tmp ; [L541] int tmp___0 ; [L545] kernel_st = 0 VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, kernel_st=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L546] FCALL update_channels() VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, kernel_st=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L547] CALL init_threads() [L231] COND TRUE m_i == 1 [L232] m_st = 0 [L236] COND TRUE t1_i == 1 [L237] t1_st = 0 [L241] COND TRUE t2_i == 1 [L242] t2_st = 0 [L547] RET init_threads() [L548] CALL fire_delta_events() VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L344] COND FALSE !(M_E == 0) [L349] COND FALSE !(T1_E == 0) [L354] COND FALSE !(T2_E == 0) [L359] COND FALSE !(E_M == 0) [L364] COND FALSE !(E_1 == 0) [L369] COND FALSE !(E_2 == 0) [L548] RET fire_delta_events() VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, kernel_st=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L549] CALL activate_threads() VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L417] int tmp ; [L418] int tmp___0 ; [L419] int tmp___1 ; [L423] CALL, EXPR is_master_triggered() [L163] int __retres1 ; VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L166] COND FALSE !(m_pc == 1) VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L176] __retres1 = 0 VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, __retres1=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L178] return (__retres1); [L423] RET, EXPR is_master_triggered() [L423] tmp = is_master_triggered() [L425] COND FALSE !(\read(tmp)) [L431] CALL, EXPR is_transmit1_triggered() [L182] int __retres1 ; VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L185] COND FALSE !(t1_pc == 1) VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L195] __retres1 = 0 VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, __retres1=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L197] return (__retres1); [L431] RET, EXPR is_transmit1_triggered() [L431] tmp___0 = is_transmit1_triggered() [L433] COND FALSE !(\read(tmp___0)) [L439] CALL, EXPR is_transmit2_triggered() [L201] int __retres1 ; VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L204] COND FALSE !(t2_pc == 1) VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L214] __retres1 = 0 VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, __retres1=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L216] return (__retres1); [L439] RET, EXPR is_transmit2_triggered() [L439] tmp___1 = is_transmit2_triggered() [L441] COND FALSE !(\read(tmp___1)) [L549] RET activate_threads() VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, kernel_st=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L550] CALL reset_delta_events() VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L382] COND FALSE !(M_E == 1) [L387] COND FALSE !(T1_E == 1) [L392] COND FALSE !(T2_E == 1) [L397] COND FALSE !(E_M == 1) [L402] COND FALSE !(E_1 == 1) [L407] COND FALSE !(E_2 == 1) [L550] RET reset_delta_events() VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, kernel_st=0, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L553] COND TRUE 1 [L556] kernel_st = 1 [L557] CALL eval() [L277] int tmp ; VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L281] COND TRUE 1 VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L284] CALL, EXPR exists_runnable_thread() VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L251] int __retres1 ; [L254] COND TRUE m_st == 0 [L255] __retres1 = 1 [L272] return (__retres1); [L284] RET, EXPR exists_runnable_thread() VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=0] [L284] tmp = exists_runnable_thread() [L286] COND TRUE \read(tmp) VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, tmp=1, token=0] [L291] COND TRUE m_st == 0 [L292] int tmp_ndt_1; [L293] EXPR tmp_ndt_1 = __VERIFIER_nondet_int() [L294] COND FALSE, EXPR !(\read(tmp_ndt_1)) VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0, token=0] [L291-L302] { int tmp_ndt_1; tmp_ndt_1 = __VERIFIER_nondet_int(); if (tmp_ndt_1) { { m_st = 1; master(); } } else { } } VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, tmp=1, token=0] [L305] COND TRUE t1_st == 0 [L306] int tmp_ndt_2; [L307] EXPR tmp_ndt_2 = __VERIFIER_nondet_int() [L308] COND TRUE, EXPR \read(tmp_ndt_2) [L310] EXPR t1_st = 1 [L311] CALL, EXPR transmit1() [L94] COND TRUE t1_pc == 0 VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=1, t2_i=1, t2_pc=0, t2_st=0, token=0] [L105] COND TRUE 1 [L107] t1_pc = 1 [L108] t1_st = 2 [L311] RET, EXPR transmit1() [L305-L316] { int tmp_ndt_2; tmp_ndt_2 = __VERIFIER_nondet_int(); if (tmp_ndt_2) { { t1_st = 1; transmit1(); } } else { } } VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, token=0] [L319] COND TRUE t2_st == 0 [L320] int tmp_ndt_3; [L321] EXPR tmp_ndt_3 = __VERIFIER_nondet_int() [L322] COND FALSE, EXPR !(\read(tmp_ndt_3)) VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_3=0, token=0] [L319-L330] { int tmp_ndt_3; tmp_ndt_3 = __VERIFIER_nondet_int(); if (tmp_ndt_3) { { t2_st = 1; transmit2(); } } else { } } VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, token=0] [L281] COND TRUE 1 VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, token=0] [L284] CALL, EXPR exists_runnable_thread() VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L251] int __retres1 ; [L254] COND TRUE m_st == 0 [L255] __retres1 = 1 [L272] return (__retres1); [L284] RET, EXPR exists_runnable_thread() VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, token=0] [L284] tmp = exists_runnable_thread() [L286] COND TRUE \read(tmp) VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, token=0] [L291] COND TRUE m_st == 0 [L292] int tmp_ndt_1; [L293] EXPR tmp_ndt_1 = __VERIFIER_nondet_int() [L294] COND TRUE, EXPR \read(tmp_ndt_1) [L296] EXPR m_st = 1 [L297] CALL, EXPR master() [L50] COND TRUE m_pc == 0 VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L61] COND TRUE 1 [L64] token = __VERIFIER_nondet_int() [L65] local = token [L66] E_1 = 1 VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L67] CALL immediate_notify() VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L455] CALL activate_threads() VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L417] int tmp ; [L418] int tmp___0 ; [L419] int tmp___1 ; [L423] CALL, EXPR is_master_triggered() [L163] int __retres1 ; VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L166] COND FALSE !(m_pc == 1) VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L176] __retres1 = 0 VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, __retres1=0, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L178] return (__retres1); [L423] RET, EXPR is_master_triggered() [L423] tmp = is_master_triggered() [L425] COND FALSE !(\read(tmp)) [L431] CALL, EXPR is_transmit1_triggered() [L182] int __retres1 ; VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L185] COND TRUE t1_pc == 1 VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L186] COND TRUE E_1 == 1 [L187] __retres1 = 1 VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, __retres1=1, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L197] return (__retres1); [L431] RET, EXPR is_transmit1_triggered() [L431] tmp___0 = is_transmit1_triggered() [L433] COND TRUE \read(tmp___0) [L434] t1_st = 0 [L439] CALL, EXPR is_transmit2_triggered() [L201] int __retres1 ; VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L204] COND FALSE !(t2_pc == 1) VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L214] __retres1 = 0 VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, __retres1=0, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L216] return (__retres1); [L439] RET, EXPR is_transmit2_triggered() [L439] tmp___1 = is_transmit2_triggered() [L441] COND FALSE !(\read(tmp___1)) [L455] RET activate_threads() VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, \old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L67] RET immediate_notify() VAL [E_1=1, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=2147483647, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L68] E_1 = 2 [L69] m_pc = 1 [L70] m_st = 2 VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=2147483647, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L297] RET, EXPR master() [L291-L302] { int tmp_ndt_1; tmp_ndt_1 = __VERIFIER_nondet_int(); if (tmp_ndt_1) { { m_st = 1; master(); } } else { } } VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=2147483647, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=0, t2_i=1, t2_pc=0, t2_st=0, tmp=1, token=2147483647] [L305] COND TRUE t1_st == 0 [L306] int tmp_ndt_2; [L307] tmp_ndt_2 = __VERIFIER_nondet_int() [L308] COND TRUE \read(tmp_ndt_2) [L310] t1_st = 1 [L311] CALL transmit1() [L94] COND FALSE !(t1_pc == 0) VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=2147483647, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L97] COND TRUE t1_pc == 1 VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=2147483647, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L113] token += 1 VAL [E_1=2, E_2=2, E_M=2, M_E=2, T1_E=2, T2_E=2, local=2147483647, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] - UnprovableResult [Line: 75]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 149]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 149]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 90 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1766 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1735 mSDsluCounter, 2679 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1299 mSDsCounter, 369 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1004 IncrementalHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 369 mSolverCounterUnsat, 1380 mSDtfsCounter, 1004 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 338 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3957occurred in iteration=11, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 1445 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 928 NumberOfCodeBlocks, 928 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 838 ConstructedInterpolants, 0 QuantifiedInterpolants, 1668 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1164 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 163/185 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-19 04:51:24,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f7f8056-5042-4369-8b0f-c82ffa9b4586/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)