./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack_longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:24:33,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:24:33,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:24:33,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:24:33,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:24:33,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:24:33,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:24:33,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:24:33,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:24:33,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:24:33,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:24:33,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:24:33,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:24:33,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:24:33,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:24:33,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:24:33,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:24:33,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:24:33,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:24:33,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:24:33,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:24:33,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:24:33,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:24:33,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:24:33,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:24:33,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:24:33,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:24:33,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:24:33,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:24:33,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:24:33,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:24:33,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:24:33,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:24:33,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:24:33,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:24:33,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:24:33,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:24:33,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:24:33,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:24:33,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:24:33,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:24:33,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:24:33,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:24:33,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:24:33,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:24:33,203 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:24:33,203 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:24:33,203 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:24:33,203 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:24:33,204 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:24:33,204 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:24:33,204 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:24:33,205 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:24:33,206 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:24:33,206 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:24:33,206 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:24:33,207 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:24:33,207 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:24:33,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:24:33,208 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:24:33,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:24:33,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:24:33,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:24:33,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:24:33,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:24:33,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:24:33,210 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:24:33,210 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:24:33,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:24:33,211 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:24:33,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:24:33,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:24:33,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:24:33,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:24:33,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:24:33,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:24:33,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:24:33,215 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:24:33,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:24:33,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:24:33,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:24:33,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:24:33,216 INFO L138 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_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 [2021-11-12 23:24:33,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:24:33,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:24:33,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:24:33,573 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:24:33,576 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:24:33,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/pthread/stack_longer-2.i [2021-11-12 23:24:33,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/data/811496629/33f0cf3f4a0e49de8c4b71bf77667298/FLAGa33370803 [2021-11-12 23:24:34,485 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:24:34,486 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/sv-benchmarks/c/pthread/stack_longer-2.i [2021-11-12 23:24:34,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/data/811496629/33f0cf3f4a0e49de8c4b71bf77667298/FLAGa33370803 [2021-11-12 23:24:34,673 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/data/811496629/33f0cf3f4a0e49de8c4b71bf77667298 [2021-11-12 23:24:34,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:24:34,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:24:34,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:24:34,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:24:34,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:24:34,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:24:34" (1/1) ... [2021-11-12 23:24:34,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153c769c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:34, skipping insertion in model container [2021-11-12 23:24:34,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:24:34" (1/1) ... [2021-11-12 23:24:34,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:24:34,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:24:35,323 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/sv-benchmarks/c/pthread/stack_longer-2.i[41529,41542] [2021-11-12 23:24:35,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:24:35,365 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:24:35,410 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/sv-benchmarks/c/pthread/stack_longer-2.i[41529,41542] [2021-11-12 23:24:35,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:24:35,512 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:24:35,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:35 WrapperNode [2021-11-12 23:24:35,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:24:35,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:24:35,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:24:35,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:24:35,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:35" (1/1) ... [2021-11-12 23:24:35,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:35" (1/1) ... [2021-11-12 23:24:35,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:24:35,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:24:35,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:24:35,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:24:35,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:35" (1/1) ... [2021-11-12 23:24:35,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:35" (1/1) ... [2021-11-12 23:24:35,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:35" (1/1) ... [2021-11-12 23:24:35,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:35" (1/1) ... [2021-11-12 23:24:35,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:35" (1/1) ... [2021-11-12 23:24:35,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:35" (1/1) ... [2021-11-12 23:24:35,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:35" (1/1) ... [2021-11-12 23:24:35,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:24:35,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:24:35,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:24:35,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:24:35,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:35" (1/1) ... [2021-11-12 23:24:35,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:24:35,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:24:35,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:24:35,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:24:35,752 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-11-12 23:24:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-11-12 23:24:35,754 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-11-12 23:24:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-11-12 23:24:35,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:24:35,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:24:35,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:24:35,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:24:35,756 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-12 23:24:35,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:24:35,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:24:35,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:24:35,758 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 23:24:36,366 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:24:36,366 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-12 23:24:36,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:24:36 BoogieIcfgContainer [2021-11-12 23:24:36,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:24:36,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:24:36,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:24:36,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:24:36,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:24:34" (1/3) ... [2021-11-12 23:24:36,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66665d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:24:36, skipping insertion in model container [2021-11-12 23:24:36,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:24:35" (2/3) ... [2021-11-12 23:24:36,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66665d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:24:36, skipping insertion in model container [2021-11-12 23:24:36,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:24:36" (3/3) ... [2021-11-12 23:24:36,380 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longer-2.i [2021-11-12 23:24:36,386 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 23:24:36,386 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:24:36,386 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-12 23:24:36,386 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 23:24:36,430 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,430 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,431 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,431 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,431 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,431 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,432 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,432 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,432 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,432 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,433 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,433 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,433 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,433 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,434 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,434 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,434 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,434 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,435 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,435 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,435 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,435 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,436 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,436 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,436 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,437 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,437 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,437 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,437 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,437 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,438 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,438 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,438 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,438 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,439 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,439 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,439 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,439 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,440 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,440 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,440 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,440 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,441 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,441 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,441 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,442 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,442 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,442 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,442 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,443 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,443 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,443 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,443 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,444 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,444 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,444 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,445 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,445 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,445 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,445 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,445 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,446 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,446 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,446 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,446 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,446 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,447 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,447 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,447 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,447 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,448 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,448 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,448 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,448 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,449 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,449 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,449 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,449 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,450 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,450 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,450 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,451 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,451 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,451 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,451 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,452 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,452 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,452 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,452 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,453 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,453 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,453 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,453 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,454 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,454 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,454 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,454 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,455 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,455 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,455 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,455 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,456 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,456 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,456 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,456 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,457 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,457 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,457 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,457 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,457 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,458 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,458 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,458 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,458 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,459 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,459 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,460 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,460 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,460 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,460 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,461 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,461 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,461 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,461 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,462 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,462 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,462 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,462 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,462 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,463 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,463 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,463 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,463 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,464 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,464 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,464 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,465 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,466 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,466 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,466 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,466 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,467 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,467 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,467 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,467 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,467 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,468 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,468 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,468 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,468 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,469 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,469 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,469 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,469 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,470 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,470 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,470 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,470 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,471 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,471 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,471 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,472 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,472 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,472 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,472 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,473 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,473 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,473 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,473 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,474 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,474 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,474 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,474 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,475 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,475 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,475 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,475 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,476 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,476 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,476 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,476 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,476 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,477 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,477 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,477 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,477 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,478 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,478 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,478 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,478 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,478 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,479 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,479 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,479 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,480 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,480 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,480 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,480 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,480 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,481 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,481 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,481 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,481 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,482 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,482 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,482 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,482 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,483 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,483 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,483 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,483 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,484 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,484 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,485 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,485 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,485 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,486 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,486 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,486 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,486 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,486 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,487 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,487 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,487 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,487 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,488 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,488 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,488 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,488 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,489 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,489 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,489 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,489 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,489 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,490 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,490 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,490 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,490 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,491 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,491 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,491 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,491 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,492 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,492 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,492 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,492 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,496 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,496 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,496 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,497 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,497 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,497 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,497 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,498 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,498 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,498 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,498 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,498 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,499 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,499 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,499 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,499 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,500 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,500 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,503 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,503 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,504 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,504 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,504 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,504 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,505 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,505 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,505 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,505 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,506 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,506 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,506 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,506 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,507 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,507 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,507 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,507 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,508 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,508 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,508 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,508 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,508 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:24:36,515 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-12 23:24:36,578 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:24:36,592 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:24:36,592 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-12 23:24:36,614 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:24:36,632 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 170 transitions, 356 flow [2021-11-12 23:24:36,639 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 170 transitions, 356 flow [2021-11-12 23:24:36,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 167 places, 170 transitions, 356 flow [2021-11-12 23:24:36,759 INFO L129 PetriNetUnfolder]: 10/168 cut-off events. [2021-11-12 23:24:36,759 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-12 23:24:36,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 168 events. 10/168 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 411 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 126. Up to 3 conditions per place. [2021-11-12 23:24:36,778 INFO L116 LiptonReduction]: Number of co-enabled transitions 8324 [2021-11-12 23:24:45,176 INFO L131 LiptonReduction]: Checked pairs total: 11210 [2021-11-12 23:24:45,177 INFO L133 LiptonReduction]: Total number of compositions: 162 [2021-11-12 23:24:45,185 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 37 transitions, 90 flow [2021-11-12 23:24:45,214 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 304 states, 301 states have (on average 2.681063122923588) internal successors, (807), 303 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:45,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 304 states, 301 states have (on average 2.681063122923588) internal successors, (807), 303 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:45,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:24:45,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:45,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 23:24:45,225 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:24:45,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:45,230 INFO L85 PathProgramCache]: Analyzing trace with hash -947993756, now seen corresponding path program 1 times [2021-11-12 23:24:45,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:45,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902244566] [2021-11-12 23:24:45,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:45,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:45,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:45,509 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:45,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902244566] [2021-11-12 23:24:45,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902244566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:45,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:45,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:24:45,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839643170] [2021-11-12 23:24:45,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:45,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:24:45,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:45,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:24:45,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:24:45,551 INFO L87 Difference]: Start difference. First operand has 304 states, 301 states have (on average 2.681063122923588) internal successors, (807), 303 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:45,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:45,684 INFO L93 Difference]: Finished difference Result 456 states and 1169 transitions. [2021-11-12 23:24:45,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:24:45,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-12 23:24:45,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:45,717 INFO L225 Difference]: With dead ends: 456 [2021-11-12 23:24:45,717 INFO L226 Difference]: Without dead ends: 434 [2021-11-12 23:24:45,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:24:45,723 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 20 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.40ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.73ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:45,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 1 Invalid, 65 Unknown, 0 Unchecked, 2.40ms Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 82.73ms Time] [2021-11-12 23:24:45,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-12 23:24:45,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 410. [2021-11-12 23:24:45,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 406 states have (on average 2.6773399014778323) internal successors, (1087), 409 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:45,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 1087 transitions. [2021-11-12 23:24:45,823 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 1087 transitions. Word has length 6 [2021-11-12 23:24:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:45,824 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 1087 transitions. [2021-11-12 23:24:45,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:45,824 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 1087 transitions. [2021-11-12 23:24:45,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 23:24:45,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:45,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:45,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:24:45,827 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:24:45,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:45,827 INFO L85 PathProgramCache]: Analyzing trace with hash -122722266, now seen corresponding path program 1 times [2021-11-12 23:24:45,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:45,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929196957] [2021-11-12 23:24:45,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:45,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:45,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:45,907 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:45,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929196957] [2021-11-12 23:24:45,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929196957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:45,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:45,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:24:45,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544415109] [2021-11-12 23:24:45,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:45,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:24:45,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:45,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:24:45,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:24:45,911 INFO L87 Difference]: Start difference. First operand 410 states and 1087 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:46,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:46,014 INFO L93 Difference]: Finished difference Result 452 states and 1195 transitions. [2021-11-12 23:24:46,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:24:46,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-12 23:24:46,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:46,024 INFO L225 Difference]: With dead ends: 452 [2021-11-12 23:24:46,024 INFO L226 Difference]: Without dead ends: 452 [2021-11-12 23:24:46,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:24:46,026 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 18 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.79ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:46,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 4 Invalid, 70 Unknown, 0 Unchecked, 0.78ms Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 92.79ms Time] [2021-11-12 23:24:46,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-11-12 23:24:46,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2021-11-12 23:24:46,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 448 states have (on average 2.6674107142857144) internal successors, (1195), 451 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:46,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 1195 transitions. [2021-11-12 23:24:46,058 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 1195 transitions. Word has length 10 [2021-11-12 23:24:46,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:46,059 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 1195 transitions. [2021-11-12 23:24:46,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:46,059 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 1195 transitions. [2021-11-12 23:24:46,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 23:24:46,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:46,061 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:46,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:24:46,062 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:24:46,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:46,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1000775458, now seen corresponding path program 1 times [2021-11-12 23:24:46,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:46,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55658058] [2021-11-12 23:24:46,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:46,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:46,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:46,140 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:46,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55658058] [2021-11-12 23:24:46,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55658058] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:24:46,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646913069] [2021-11-12 23:24:46,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:46,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:24:46,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:24:46,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:24:46,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 23:24:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:46,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:24:46,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:46,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:46,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:46,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646913069] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:24:46,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [403887871] [2021-11-12 23:24:46,482 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:24:46,484 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:24:46,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2021-11-12 23:24:46,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922246411] [2021-11-12 23:24:46,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:24:46,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:24:46,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:46,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:24:46,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:24:46,500 INFO L87 Difference]: Start difference. First operand 452 states and 1195 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:46,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:46,910 INFO L93 Difference]: Finished difference Result 1108 states and 2838 transitions. [2021-11-12 23:24:46,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:24:46,911 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-12 23:24:46,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:46,921 INFO L225 Difference]: With dead ends: 1108 [2021-11-12 23:24:46,922 INFO L226 Difference]: Without dead ends: 1080 [2021-11-12 23:24:46,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:24:46,924 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 171 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 263.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.15ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 333.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:46,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 0 Invalid, 380 Unknown, 0 Unchecked, 6.15ms Time], IncrementalHoareTripleChecker [11 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 333.15ms Time] [2021-11-12 23:24:46,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2021-11-12 23:24:46,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 734. [2021-11-12 23:24:46,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 730 states have (on average 2.691780821917808) internal successors, (1965), 733 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:46,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1965 transitions. [2021-11-12 23:24:46,967 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1965 transitions. Word has length 13 [2021-11-12 23:24:46,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:46,968 INFO L470 AbstractCegarLoop]: Abstraction has 734 states and 1965 transitions. [2021-11-12 23:24:46,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:46,968 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1965 transitions. [2021-11-12 23:24:46,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 23:24:46,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:46,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:47,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:24:47,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-12 23:24:47,187 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:24:47,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:47,187 INFO L85 PathProgramCache]: Analyzing trace with hash -294380294, now seen corresponding path program 1 times [2021-11-12 23:24:47,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:47,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788028460] [2021-11-12 23:24:47,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:47,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:47,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:47,274 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:47,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788028460] [2021-11-12 23:24:47,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788028460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:47,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:47,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:24:47,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617152585] [2021-11-12 23:24:47,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:47,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:24:47,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:47,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:24:47,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:24:47,288 INFO L87 Difference]: Start difference. First operand 734 states and 1965 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:47,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:47,353 INFO L93 Difference]: Finished difference Result 310 states and 698 transitions. [2021-11-12 23:24:47,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:24:47,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-12 23:24:47,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:47,357 INFO L225 Difference]: With dead ends: 310 [2021-11-12 23:24:47,357 INFO L226 Difference]: Without dead ends: 306 [2021-11-12 23:24:47,357 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:24:47,359 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 24 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.47ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:47,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 2 Invalid, 58 Unknown, 0 Unchecked, 0.47ms Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 59.64ms Time] [2021-11-12 23:24:47,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-11-12 23:24:47,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 282. [2021-11-12 23:24:47,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 280 states have (on average 2.2642857142857142) internal successors, (634), 281 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:47,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 634 transitions. [2021-11-12 23:24:47,372 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 634 transitions. Word has length 16 [2021-11-12 23:24:47,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:47,373 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 634 transitions. [2021-11-12 23:24:47,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:47,373 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 634 transitions. [2021-11-12 23:24:47,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-12 23:24:47,375 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:47,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:47,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 23:24:47,375 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:24:47,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:47,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1449650952, now seen corresponding path program 1 times [2021-11-12 23:24:47,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:47,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222440392] [2021-11-12 23:24:47,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:47,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:47,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:47,416 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:47,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222440392] [2021-11-12 23:24:47,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222440392] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:47,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:47,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:24:47,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193076636] [2021-11-12 23:24:47,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:47,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:24:47,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:47,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:24:47,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:24:47,418 INFO L87 Difference]: Start difference. First operand 282 states and 634 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:47,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:47,502 INFO L93 Difference]: Finished difference Result 342 states and 763 transitions. [2021-11-12 23:24:47,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:24:47,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-12 23:24:47,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:47,505 INFO L225 Difference]: With dead ends: 342 [2021-11-12 23:24:47,505 INFO L226 Difference]: Without dead ends: 340 [2021-11-12 23:24:47,506 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:24:47,507 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 19 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.51ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.51ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:47,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 1 Invalid, 80 Unknown, 0 Unchecked, 0.51ms Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 77.51ms Time] [2021-11-12 23:24:47,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-11-12 23:24:47,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 282. [2021-11-12 23:24:47,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 280 states have (on average 2.2714285714285714) internal successors, (636), 281 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:47,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 636 transitions. [2021-11-12 23:24:47,520 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 636 transitions. Word has length 17 [2021-11-12 23:24:47,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:47,521 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 636 transitions. [2021-11-12 23:24:47,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 636 transitions. [2021-11-12 23:24:47,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-12 23:24:47,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:47,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:47,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-12 23:24:47,524 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:24:47,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:47,525 INFO L85 PathProgramCache]: Analyzing trace with hash 50627632, now seen corresponding path program 1 times [2021-11-12 23:24:47,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:47,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117780990] [2021-11-12 23:24:47,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:47,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:48,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:48,015 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:48,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117780990] [2021-11-12 23:24:48,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117780990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:48,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:48,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-12 23:24:48,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977337968] [2021-11-12 23:24:48,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:48,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:24:48,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:48,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:24:48,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:24:48,020 INFO L87 Difference]: Start difference. First operand 282 states and 636 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:48,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:48,619 INFO L93 Difference]: Finished difference Result 479 states and 1056 transitions. [2021-11-12 23:24:48,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:24:48,620 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-12 23:24:48,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:48,623 INFO L225 Difference]: With dead ends: 479 [2021-11-12 23:24:48,624 INFO L226 Difference]: Without dead ends: 434 [2021-11-12 23:24:48,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:24:48,625 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 120 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 371.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.51ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 430.24ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:48,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 20 Invalid, 350 Unknown, 0 Unchecked, 3.51ms Time], IncrementalHoareTripleChecker [11 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 430.24ms Time] [2021-11-12 23:24:48,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-12 23:24:48,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 336. [2021-11-12 23:24:48,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 334 states have (on average 2.2964071856287425) internal successors, (767), 335 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:48,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 767 transitions. [2021-11-12 23:24:48,641 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 767 transitions. Word has length 21 [2021-11-12 23:24:48,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:48,642 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 767 transitions. [2021-11-12 23:24:48,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:48,642 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 767 transitions. [2021-11-12 23:24:48,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-12 23:24:48,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:48,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:48,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-12 23:24:48,644 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:24:48,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:48,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1996967548, now seen corresponding path program 2 times [2021-11-12 23:24:48,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:48,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331948298] [2021-11-12 23:24:48,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:48,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:49,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:49,083 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:49,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331948298] [2021-11-12 23:24:49,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331948298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:49,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:49,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-12 23:24:49,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701863046] [2021-11-12 23:24:49,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:49,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:24:49,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:49,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:24:49,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:24:49,086 INFO L87 Difference]: Start difference. First operand 336 states and 767 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:49,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:49,695 INFO L93 Difference]: Finished difference Result 502 states and 1110 transitions. [2021-11-12 23:24:49,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:24:49,699 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-12 23:24:49,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:49,701 INFO L225 Difference]: With dead ends: 502 [2021-11-12 23:24:49,701 INFO L226 Difference]: Without dead ends: 456 [2021-11-12 23:24:49,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:24:49,702 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 100 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 374.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.74ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 425.51ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:49,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 19 Invalid, 341 Unknown, 0 Unchecked, 2.74ms Time], IncrementalHoareTripleChecker [10 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 425.51ms Time] [2021-11-12 23:24:49,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-11-12 23:24:49,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 324. [2021-11-12 23:24:49,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 322 states have (on average 2.282608695652174) internal successors, (735), 323 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 735 transitions. [2021-11-12 23:24:49,715 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 735 transitions. Word has length 21 [2021-11-12 23:24:49,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:49,715 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 735 transitions. [2021-11-12 23:24:49,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:49,716 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 735 transitions. [2021-11-12 23:24:49,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-12 23:24:49,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:49,717 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:49,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-12 23:24:49,717 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:24:49,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:49,718 INFO L85 PathProgramCache]: Analyzing trace with hash 715495023, now seen corresponding path program 1 times [2021-11-12 23:24:49,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:49,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446859923] [2021-11-12 23:24:49,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:49,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:49,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:49,777 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:49,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446859923] [2021-11-12 23:24:49,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446859923] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:24:49,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731170624] [2021-11-12 23:24:49,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:49,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:24:49,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:24:49,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:24:49,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 23:24:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:49,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:24:49,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 23:24:49,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 23:24:50,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731170624] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:50,028 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:24:50,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 11 [2021-11-12 23:24:50,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106292089] [2021-11-12 23:24:50,029 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:50,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:24:50,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:50,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:24:50,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:24:50,031 INFO L87 Difference]: Start difference. First operand 324 states and 735 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:50,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:50,322 INFO L93 Difference]: Finished difference Result 478 states and 1038 transitions. [2021-11-12 23:24:50,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:24:50,323 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-12 23:24:50,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:50,326 INFO L225 Difference]: With dead ends: 478 [2021-11-12 23:24:50,326 INFO L226 Difference]: Without dead ends: 466 [2021-11-12 23:24:50,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:24:50,328 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 106 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 182.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.15ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 228.62ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:50,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 0 Invalid, 364 Unknown, 0 Unchecked, 2.15ms Time], IncrementalHoareTripleChecker [9 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 228.62ms Time] [2021-11-12 23:24:50,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2021-11-12 23:24:50,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 378. [2021-11-12 23:24:50,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 376 states have (on average 2.25) internal successors, (846), 377 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:50,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 846 transitions. [2021-11-12 23:24:50,344 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 846 transitions. Word has length 24 [2021-11-12 23:24:50,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:50,344 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 846 transitions. [2021-11-12 23:24:50,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:50,345 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 846 transitions. [2021-11-12 23:24:50,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 23:24:50,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:50,346 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2021-11-12 23:24:50,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:24:50,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:24:50,567 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:24:50,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:50,567 INFO L85 PathProgramCache]: Analyzing trace with hash -232258018, now seen corresponding path program 2 times [2021-11-12 23:24:50,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:50,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706870404] [2021-11-12 23:24:50,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:50,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:50,722 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:50,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706870404] [2021-11-12 23:24:50,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706870404] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:24:50,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030765560] [2021-11-12 23:24:50,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:24:50,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:24:50,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:24:50,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:24:50,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-12 23:24:50,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-12 23:24:50,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:24:50,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:24:50,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:50,932 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:50,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:24:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:51,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030765560] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:24:51,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [147047671] [2021-11-12 23:24:51,056 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:24:51,056 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:24:51,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 19 [2021-11-12 23:24:51,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355815665] [2021-11-12 23:24:51,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:24:51,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-12 23:24:51,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:51,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-12 23:24:51,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:24:51,060 INFO L87 Difference]: Start difference. First operand 378 states and 846 transitions. Second operand has 20 states, 20 states have (on average 3.3) internal successors, (66), 19 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:51,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:51,556 INFO L93 Difference]: Finished difference Result 880 states and 1887 transitions. [2021-11-12 23:24:51,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-12 23:24:51,556 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.3) internal successors, (66), 19 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-12 23:24:51,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:51,563 INFO L225 Difference]: With dead ends: 880 [2021-11-12 23:24:51,563 INFO L226 Difference]: Without dead ends: 880 [2021-11-12 23:24:51,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=237, Invalid=575, Unknown=0, NotChecked=0, Total=812 [2021-11-12 23:24:51,564 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 279 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 294.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.23ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 365.17ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:51,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 0 Invalid, 512 Unknown, 0 Unchecked, 4.23ms Time], IncrementalHoareTripleChecker [18 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 365.17ms Time] [2021-11-12 23:24:51,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2021-11-12 23:24:51,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 602. [2021-11-12 23:24:51,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 600 states have (on average 2.27) internal successors, (1362), 601 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:51,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1362 transitions. [2021-11-12 23:24:51,590 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1362 transitions. Word has length 27 [2021-11-12 23:24:51,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:51,590 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 1362 transitions. [2021-11-12 23:24:51,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.3) internal successors, (66), 19 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:51,591 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1362 transitions. [2021-11-12 23:24:51,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 23:24:51,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:51,592 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:51,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:24:51,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:24:51,806 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:24:51,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:51,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1554545898, now seen corresponding path program 3 times [2021-11-12 23:24:51,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:51,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825121702] [2021-11-12 23:24:51,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:51,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:52,219 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:24:52,220 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:52,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825121702] [2021-11-12 23:24:52,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825121702] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:52,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:52,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-12 23:24:52,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527821222] [2021-11-12 23:24:52,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:52,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:24:52,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:52,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:24:52,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:24:52,222 INFO L87 Difference]: Start difference. First operand 602 states and 1362 transitions. Second operand has 14 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:53,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:53,393 INFO L93 Difference]: Finished difference Result 1215 states and 2713 transitions. [2021-11-12 23:24:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:24:53,394 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-12 23:24:53,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:53,403 INFO L225 Difference]: With dead ends: 1215 [2021-11-12 23:24:53,403 INFO L226 Difference]: Without dead ends: 1183 [2021-11-12 23:24:53,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=171, Invalid=821, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:24:53,405 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 147 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 609.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.20ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 714.92ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:53,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 0 Invalid, 1133 Unknown, 0 Unchecked, 6.20ms Time], IncrementalHoareTripleChecker [30 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 714.92ms Time] [2021-11-12 23:24:53,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-11-12 23:24:53,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 722. [2021-11-12 23:24:53,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 720 states have (on average 2.370833333333333) internal successors, (1707), 721 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:53,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1707 transitions. [2021-11-12 23:24:53,441 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1707 transitions. Word has length 28 [2021-11-12 23:24:53,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:53,442 INFO L470 AbstractCegarLoop]: Abstraction has 722 states and 1707 transitions. [2021-11-12 23:24:53,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:53,442 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1707 transitions. [2021-11-12 23:24:53,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 23:24:53,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:53,446 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:53,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-12 23:24:53,447 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:24:53,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:53,447 INFO L85 PathProgramCache]: Analyzing trace with hash -244043574, now seen corresponding path program 4 times [2021-11-12 23:24:53,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:53,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090037614] [2021-11-12 23:24:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:53,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:53,884 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:24:53,884 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:53,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090037614] [2021-11-12 23:24:53,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090037614] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:24:53,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300212900] [2021-11-12 23:24:53,884 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:24:53,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:24:53,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:24:53,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:24:53,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-12 23:24:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:53,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-12 23:24:53,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:24:54,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 107 [2021-11-12 23:24:54,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2021-11-12 23:24:54,824 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-12 23:24:54,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 40 [2021-11-12 23:24:55,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 45 [2021-11-12 23:25:28,920 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:28,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:25:38,649 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#id2~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~pre52#1_44| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base|) |ULTIMATE.start_main_~#id2~0#1.offset| |v_ULTIMATE.start_main_#t~pre52#1_44|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* |c_t1Thread1of1ForFork1_inc_top_#t~post33#1| 4))) 4294967296)))) is different from false [2021-11-12 23:25:41,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 262 [2021-11-12 23:25:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 2 times theorem prover too weak. 1 trivial. 1 not checked. [2021-11-12 23:25:43,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300212900] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:25:43,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [602717254] [2021-11-12 23:25:43,963 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:25:43,963 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:25:43,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 13] total 41 [2021-11-12 23:25:43,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211544221] [2021-11-12 23:25:43,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:25:43,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-12 23:25:43,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:43,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-12 23:25:43,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1557, Unknown=22, NotChecked=80, Total=1806 [2021-11-12 23:25:43,965 INFO L87 Difference]: Start difference. First operand 722 states and 1707 transitions. Second operand has 43 states, 42 states have (on average 2.0) internal successors, (84), 42 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:58,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:58,397 INFO L93 Difference]: Finished difference Result 1779 states and 3979 transitions. [2021-11-12 23:25:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-12 23:25:58,398 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.0) internal successors, (84), 42 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-12 23:25:58,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:58,413 INFO L225 Difference]: With dead ends: 1779 [2021-11-12 23:25:58,413 INFO L226 Difference]: Without dead ends: 1771 [2021-11-12 23:25:58,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 46 SyntacticMatches, 12 SemanticMatches, 98 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2900 ImplicationChecksByTransitivity, 59.3s TimeCoverageRelationStatistics Valid=1166, Invalid=8518, Unknown=22, NotChecked=194, Total=9900 [2021-11-12 23:25:58,419 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 714 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 3923 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3393.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.73ms SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 3923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 563 IncrementalHoareTripleChecker+Unchecked, 4011.88ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:58,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 0 Invalid, 4661 Unknown, 0 Unchecked, 24.73ms Time], IncrementalHoareTripleChecker [175 Valid, 3923 Invalid, 0 Unknown, 563 Unchecked, 4011.88ms Time] [2021-11-12 23:25:58,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2021-11-12 23:25:58,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 912. [2021-11-12 23:25:58,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 910 states have (on average 2.4494505494505496) internal successors, (2229), 911 states have internal predecessors, (2229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 2229 transitions. [2021-11-12 23:25:58,492 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 2229 transitions. Word has length 28 [2021-11-12 23:25:58,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:58,492 INFO L470 AbstractCegarLoop]: Abstraction has 912 states and 2229 transitions. [2021-11-12 23:25:58,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 2.0) internal successors, (84), 42 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:58,493 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 2229 transitions. [2021-11-12 23:25:58,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-12 23:25:58,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:58,495 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:58,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:25:58,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:25:58,719 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:25:58,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:58,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1024583047, now seen corresponding path program 1 times [2021-11-12 23:25:58,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:58,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186055593] [2021-11-12 23:25:58,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:58,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:59,517 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:59,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:59,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186055593] [2021-11-12 23:25:59,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186055593] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:25:59,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359396358] [2021-11-12 23:25:59,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:59,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:25:59,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:25:59,523 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:25:59,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 23:25:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:59,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-12 23:25:59,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:25:59,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 656 treesize of output 624 [2021-11-12 23:26:00,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2021-11-12 23:26:00,721 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-12 23:26:00,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 40 [2021-11-12 23:26:01,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 45 [2021-11-12 23:26:32,378 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:32,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:19,315 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#id2~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~pre52#1_46| Int)) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base|) |ULTIMATE.start_main_~#id2~0#1.offset| |v_ULTIMATE.start_main_#t~pre52#1_46|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296) 4294967294))) is different from false [2021-11-12 23:27:19,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 262 [2021-11-12 23:27:22,515 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 2 times theorem prover too weak. 1 trivial. 1 not checked. [2021-11-12 23:27:22,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359396358] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:27:22,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [677974941] [2021-11-12 23:27:22,517 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:27:22,517 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:27:22,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 13] total 43 [2021-11-12 23:27:22,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783246666] [2021-11-12 23:27:22,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:27:22,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-12 23:27:22,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:27:22,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-12 23:27:22,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1725, Unknown=34, NotChecked=84, Total=1980 [2021-11-12 23:27:22,520 INFO L87 Difference]: Start difference. First operand 912 states and 2229 transitions. Second operand has 45 states, 44 states have (on average 1.9772727272727273) internal successors, (87), 44 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:28:08,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:28:08,111 INFO L93 Difference]: Finished difference Result 2075 states and 4874 transitions. [2021-11-12 23:28:08,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-12 23:28:08,111 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.9772727272727273) internal successors, (87), 44 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-12 23:28:08,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:28:08,128 INFO L225 Difference]: With dead ends: 2075 [2021-11-12 23:28:08,129 INFO L226 Difference]: Without dead ends: 2075 [2021-11-12 23:28:08,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1482 ImplicationChecksByTransitivity, 124.3s TimeCoverageRelationStatistics Valid=514, Invalid=5775, Unknown=35, NotChecked=156, Total=6480 [2021-11-12 23:28:08,132 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 353 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 2942 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2536.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 3888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.53ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 914 IncrementalHoareTripleChecker+Unchecked, 2871.44ms IncrementalHoareTripleChecker+Time [2021-11-12 23:28:08,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 2 Invalid, 3888 Unknown, 0 Unchecked, 12.53ms Time], IncrementalHoareTripleChecker [32 Valid, 2942 Invalid, 0 Unknown, 914 Unchecked, 2871.44ms Time] [2021-11-12 23:28:08,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2021-11-12 23:28:08,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 932. [2021-11-12 23:28:08,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 930 states have (on average 2.478494623655914) internal successors, (2305), 931 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:28:08,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 2305 transitions. [2021-11-12 23:28:08,180 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 2305 transitions. Word has length 29 [2021-11-12 23:28:08,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:28:08,180 INFO L470 AbstractCegarLoop]: Abstraction has 932 states and 2305 transitions. [2021-11-12 23:28:08,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 1.9772727272727273) internal successors, (87), 44 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:28:08,181 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 2305 transitions. [2021-11-12 23:28:08,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-12 23:28:08,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:28:08,183 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:28:08,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:28:08,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:28:08,411 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:28:08,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:28:08,411 INFO L85 PathProgramCache]: Analyzing trace with hash 835269537, now seen corresponding path program 2 times [2021-11-12 23:28:08,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:28:08,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090506269] [2021-11-12 23:28:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:08,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:28:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:09,307 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:28:09,308 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:28:09,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090506269] [2021-11-12 23:28:09,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090506269] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:28:09,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899626362] [2021-11-12 23:28:09,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:28:09,309 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:28:09,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:28:09,310 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:28:09,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-12 23:28:09,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-12 23:28:09,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:28:09,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-12 23:28:09,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:09,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 173 [2021-11-12 23:28:09,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2021-11-12 23:28:09,941 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-11-12 23:28:09,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 42 [2021-11-12 23:28:10,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 45 [2021-11-12 23:28:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:28:10,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:29:05,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 262 [2021-11-12 23:29:05,701 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 1 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:29:05,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899626362] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:29:05,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [526854934] [2021-11-12 23:29:05,703 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:29:05,704 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:29:05,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 40 [2021-11-12 23:29:05,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158570908] [2021-11-12 23:29:05,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:29:05,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-12 23:29:05,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:29:05,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-12 23:29:05,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1596, Unknown=10, NotChecked=0, Total=1722 [2021-11-12 23:29:05,707 INFO L87 Difference]: Start difference. First operand 932 states and 2305 transitions. Second operand has 42 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 41 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:29:20,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:29:20,170 INFO L93 Difference]: Finished difference Result 2567 states and 5677 transitions. [2021-11-12 23:29:20,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-12 23:29:20,171 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 41 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-12 23:29:20,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:29:20,189 INFO L225 Difference]: With dead ends: 2567 [2021-11-12 23:29:20,190 INFO L226 Difference]: Without dead ends: 2567 [2021-11-12 23:29:20,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2916 ImplicationChecksByTransitivity, 66.7s TimeCoverageRelationStatistics Valid=1289, Invalid=11133, Unknown=10, NotChecked=0, Total=12432 [2021-11-12 23:29:20,196 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 954 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2989.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.72ms SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 146 IncrementalHoareTripleChecker+Unchecked, 3367.25ms IncrementalHoareTripleChecker+Time [2021-11-12 23:29:20,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 0 Invalid, 3082 Unknown, 0 Unchecked, 14.72ms Time], IncrementalHoareTripleChecker [277 Valid, 2659 Invalid, 0 Unknown, 146 Unchecked, 3367.25ms Time] [2021-11-12 23:29:20,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2021-11-12 23:29:20,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 634. [2021-11-12 23:29:20,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 632 states have (on average 2.2895569620253164) internal successors, (1447), 633 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:29:20,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1447 transitions. [2021-11-12 23:29:20,262 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1447 transitions. Word has length 29 [2021-11-12 23:29:20,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:29:20,263 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1447 transitions. [2021-11-12 23:29:20,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 41 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:29:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1447 transitions. [2021-11-12 23:29:20,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-12 23:29:20,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:29:20,265 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:29:20,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:29:20,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-12 23:29:20,479 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:29:20,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:29:20,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1128988441, now seen corresponding path program 1 times [2021-11-12 23:29:20,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:29:20,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852110751] [2021-11-12 23:29:20,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:29:20,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:29:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:29:21,417 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:29:21,417 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:29:21,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852110751] [2021-11-12 23:29:21,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852110751] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:29:21,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249504778] [2021-11-12 23:29:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:29:21,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:29:21,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:29:21,419 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:29:21,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-12 23:29:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:29:21,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-12 23:29:21,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:29:21,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2021-11-12 23:29:22,232 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-11-12 23:29:22,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 49 [2021-11-12 23:29:23,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 45 [2021-11-12 23:29:23,412 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:29:23,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:30:09,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2021-11-12 23:30:09,974 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:30:09,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249504778] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:30:09,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [191407026] [2021-11-12 23:30:09,975 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:30:09,976 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:30:09,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17, 17] total 55 [2021-11-12 23:30:09,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870635927] [2021-11-12 23:30:09,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:30:09,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-11-12 23:30:09,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:30:09,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-11-12 23:30:09,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=2899, Unknown=3, NotChecked=0, Total=3080 [2021-11-12 23:30:09,978 INFO L87 Difference]: Start difference. First operand 634 states and 1447 transitions. Second operand has 56 states, 55 states have (on average 1.8545454545454545) internal successors, (102), 56 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:30:58,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:30:58,001 INFO L93 Difference]: Finished difference Result 2887 states and 6317 transitions. [2021-11-12 23:30:58,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2021-11-12 23:30:58,001 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 1.8545454545454545) internal successors, (102), 56 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-12 23:30:58,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:30:58,019 INFO L225 Difference]: With dead ends: 2887 [2021-11-12 23:30:58,019 INFO L226 Difference]: Without dead ends: 2887 [2021-11-12 23:30:58,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 74 SyntacticMatches, 2 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13452 ImplicationChecksByTransitivity, 84.9s TimeCoverageRelationStatistics Valid=4320, Invalid=39987, Unknown=3, NotChecked=0, Total=44310 [2021-11-12 23:30:58,028 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1027 mSDsluCounter, 3622 mSDsCounter, 0 mSdLazyCounter, 8734 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9649.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.53ms SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 8734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 457 IncrementalHoareTripleChecker+Unchecked, 10792.27ms IncrementalHoareTripleChecker+Time [2021-11-12 23:30:58,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1027 Valid, 0 Invalid, 9492 Unknown, 0 Unchecked, 35.53ms Time], IncrementalHoareTripleChecker [301 Valid, 8734 Invalid, 0 Unknown, 457 Unchecked, 10792.27ms Time] [2021-11-12 23:30:58,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2021-11-12 23:30:58,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 1081. [2021-11-12 23:30:58,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1079 states have (on average 2.447636700648749) internal successors, (2641), 1080 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:30:58,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 2641 transitions. [2021-11-12 23:30:58,078 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 2641 transitions. Word has length 36 [2021-11-12 23:30:58,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:30:58,079 INFO L470 AbstractCegarLoop]: Abstraction has 1081 states and 2641 transitions. [2021-11-12 23:30:58,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 1.8545454545454545) internal successors, (102), 56 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:30:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 2641 transitions. [2021-11-12 23:30:58,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-12 23:30:58,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:30:58,082 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:30:58,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:30:58,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-12 23:30:58,296 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-12 23:30:58,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:30:58,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1051983685, now seen corresponding path program 2 times [2021-11-12 23:30:58,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:30:58,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863967136] [2021-11-12 23:30:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:30:58,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:30:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:30:59,490 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:30:59,490 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:30:59,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863967136] [2021-11-12 23:30:59,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863967136] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:30:59,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911216289] [2021-11-12 23:30:59,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:30:59,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:30:59,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:30:59,495 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:30:59,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33b16ffb-d2b9-4da0-8ed6-da7c655dcc60/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-12 23:30:59,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-12 23:30:59,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:30:59,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-12 23:30:59,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:30:59,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1635 treesize of output 1571 [2021-11-12 23:31:00,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2021-11-12 23:31:00,468 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-12 23:31:00,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 38 [2021-11-12 23:31:00,870 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-12 23:31:00,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 44 [2021-11-12 23:31:01,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 45 [2021-11-12 23:31:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:31:01,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:58,313 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#id2~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~pre52#1_49| Int)) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base|) |ULTIMATE.start_main_~#id2~0#1.offset| |v_ULTIMATE.start_main_#t~pre52#1_49|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* |c_t1Thread1of1ForFork1_inc_top_#t~post33#1| 4))) 4294967296) 4294967294))) is different from false [2021-11-12 23:32:17,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 262 [2021-11-12 23:32:20,855 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-12 23:32:20,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911216289] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:32:20,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1171397648] [2021-11-12 23:32:20,857 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:32:20,857 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:32:20,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18, 18] total 51 [2021-11-12 23:32:20,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455043285] [2021-11-12 23:32:20,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:32:20,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-12 23:32:20,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:32:20,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-12 23:32:20,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=2369, Unknown=24, NotChecked=100, Total=2756 [2021-11-12 23:32:20,859 INFO L87 Difference]: Start difference. First operand 1081 states and 2641 transitions. Second operand has 53 states, 52 states have (on average 2.076923076923077) internal successors, (108), 52 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:32:24,917 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|)) (.cse1 ((as const (Array Int Int)) 0))) (let ((.cse2 (select |c_#memory_int| |c_~#arr~0.base|)) (.cse5 (@diff .cse4 .cse1))) (let ((.cse7 (select (store .cse4 (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |c_t1Thread1of1ForFork1_push_#t~ret38#1| 4)) |c_t1Thread1of1ForFork1_push_~x#1|) .cse5)) (.cse0 (= c_~top~0 0)) (.cse6 (= |c_~#arr~0.offset| 0)) (.cse3 (@diff .cse2 .cse1)) (.cse8 (select .cse2 (+ |c_~#arr~0.offset| (* c_~top~0 4))))) (and .cse0 (= .cse1 (store .cse2 .cse3 0)) (= |c_t1Thread1of1ForFork1_push_~stack#1.base| |c_~#arr~0.base|) (= .cse1 (store .cse4 .cse5 0)) (< (div |c_t1Thread1of1ForFork1_push_~x#1| (- 4294967296)) (+ (div (+ 399 (* |c_t1Thread1of1ForFork1_push_~x#1| (- 1))) 4294967296) 1)) (forall ((|t1Thread1of1ForFork1_push_~x#1| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |c_t1Thread1of1ForFork1_push_#t~ret38#1| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))) .cse6 (forall ((|v_t1Thread1of1ForFork1_push_#t~ret38#1_126| Int) (|t1Thread1of1ForFork1_push_~x#1| Int)) (or (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296))) (< |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| c_~top~0))) (<= .cse7 399) (<= 0 |c_t1Thread1of1ForFork1_push_~x#1|) (< (div .cse8 (- 4294967296)) (+ (div (+ 399 (* .cse8 (- 1))) 4294967296) 1)) (not (= |c_~#m~0.base| |c_~#arr~0.base|)) (<= 0 .cse7) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork1_push_~stack#1.offset|) (< .cse8 4294967296) (or (= .cse1 .cse2) (let ((.cse9 (select .cse2 .cse3))) (and .cse0 (<= 0 .cse9) .cse6 (<= .cse3 0) (<= .cse9 399)))) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_~#arr~0.base|)) (<= |c_t1Thread1of1ForFork1_push_~x#1| 399) (<= 0 .cse8) (< |c_t1Thread1of1ForFork1_push_~x#1| 4294967296) (= |c_t1Thread1of1ForFork1_push_#t~ret38#1| c_~top~0))))) is different from false [2021-11-12 23:32:28,913 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_~#arr~0.base|)) (.cse1 ((as const (Array Int Int)) 0))) (let ((.cse4 (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|)) (.cse3 (@diff .cse2 .cse1))) (let ((.cse15 (select .cse2 .cse3)) (.cse5 (@diff .cse4 .cse1))) (let ((.cse9 (select (store .cse4 (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |c_t1Thread1of1ForFork1_push_#t~ret38#1| 4)) |c_t1Thread1of1ForFork1_push_~x#1|) .cse5)) (.cse0 (= c_~top~0 0)) (.cse10 (select .cse2 (+ |c_~#arr~0.offset| (* c_~top~0 4)))) (.cse7 (select .cse2 |c_~#arr~0.offset|)) (.cse12 (<= 0 .cse15)) (.cse6 (= |c_~#arr~0.offset| 0)) (.cse13 (<= .cse3 0)) (.cse14 (<= .cse15 399)) (.cse8 (= |c_t1Thread1of1ForFork1_inc_top_#t~post33#1| 0)) (.cse11 (= .cse1 .cse2))) (and .cse0 (= .cse1 (store .cse2 .cse3 0)) (= |c_t1Thread1of1ForFork1_push_~stack#1.base| |c_~#arr~0.base|) (= .cse1 (store .cse4 .cse5 0)) (< (div |c_t1Thread1of1ForFork1_push_~x#1| (- 4294967296)) (+ (div (+ 399 (* |c_t1Thread1of1ForFork1_push_~x#1| (- 1))) 4294967296) 1)) .cse6 (<= 0 .cse7) .cse8 (forall ((|v_t1Thread1of1ForFork1_push_#t~ret38#1_126| Int) (|t1Thread1of1ForFork1_push_~x#1| Int)) (or (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296))) (< |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| c_~top~0))) (<= .cse9 399) (<= 0 |c_t1Thread1of1ForFork1_push_~x#1|) (< (div .cse10 (- 4294967296)) (+ (div (+ 399 (* .cse10 (- 1))) 4294967296) 1)) (not (= |c_~#m~0.base| |c_~#arr~0.base|)) (<= 0 .cse9) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork1_push_~stack#1.offset|) (< .cse10 4294967296) (or .cse11 (and .cse0 .cse12 .cse6 .cse13 .cse14)) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_~#arr~0.base|)) (<= |c_t1Thread1of1ForFork1_push_~x#1| 399) (<= 0 .cse10) (< (div .cse7 (- 4294967296)) (+ (div (+ (* .cse7 (- 1)) 399) 4294967296) 1)) (< .cse7 4294967296) (< |c_t1Thread1of1ForFork1_push_~x#1| 4294967296) (or (and .cse12 .cse6 .cse13 .cse14 .cse8) .cse11)))))) is different from false [2021-11-12 23:32:39,378 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_~#arr~0.base|)) (.cse3 ((as const (Array Int Int)) 0))) (let ((.cse7 (@diff .cse6 .cse3))) (let ((.cse4 (store .cse6 .cse7 0))) (let ((.cse5 (@diff .cse4 .cse3))) (let ((.cse1 (select .cse6 .cse7)) (.cse0 (select .cse6 .cse5)) (.cse2 (select .cse6 |c_~#arr~0.offset|))) (and (not (= 4294967294 (mod |c_t1Thread1of1ForFork1_push_~x#1| 4294967296))) (<= 0 .cse0) (<= 0 .cse1) (forall ((|ULTIMATE.start_main_~#id2~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~pre52#1_49| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base|) |ULTIMATE.start_main_~#id2~0#1.offset| |v_ULTIMATE.start_main_#t~pre52#1_49|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))) (= |c_t1Thread1of1ForFork1_push_~stack#1.base| |c_~#arr~0.base|) (= |c_~#arr~0.offset| 0) (<= 0 .cse2) (= c_~top~0 2) (<= .cse1 399) (forall ((|v_t1Thread1of1ForFork1_push_#t~ret38#1_126| Int) (|t1Thread1of1ForFork1_push_~x#1| Int)) (or (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296))) (< |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| c_~top~0))) (= .cse3 (store .cse4 .cse5 0)) (forall ((|ULTIMATE.start_main_~#id2~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~pre52#1_49| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base|) |ULTIMATE.start_main_~#id2~0#1.offset| |v_ULTIMATE.start_main_#t~pre52#1_49|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) (not (= |c_~#m~0.base| |c_~#arr~0.base|)) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork1_push_~stack#1.offset|) (<= .cse0 399) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_~#arr~0.base|)) (< (div .cse2 (- 4294967296)) (+ (div (+ (* .cse2 (- 1)) 399) 4294967296) 1)) (< .cse2 4294967296))))))) is different from false [2021-11-12 23:33:24,432 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse19 (select |c_#memory_int| |c_t2Thread1of1ForFork0_pop_~stack#1.base|)) (.cse21 (select |c_#memory_int| |c_t2Thread1of1ForFork0_pop_#in~stack#1.base|)) (.cse2 ((as const (Array Int Int)) 0))) (let ((.cse22 (@diff .cse21 .cse2)) (.cse20 (@diff .cse19 .cse2))) (let ((.cse5 (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|)) (.cse14 (store .cse19 .cse20 0)) (.cse12 (store .cse21 .cse22 0))) (let ((.cse13 (@diff .cse12 .cse2)) (.cse15 (@diff .cse14 .cse2)) (.cse3 (select |c_#memory_int| |c_~#arr~0.base|)) (.cse6 (@diff .cse5 .cse2))) (let ((.cse10 (select (store .cse5 (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |c_t1Thread1of1ForFork1_push_#t~ret38#1| 4)) |c_t1Thread1of1ForFork1_push_~x#1|) .cse6)) (.cse9 (select .cse21 .cse22)) (.cse1 (= c_~top~0 0)) (.cse7 (= |c_~#arr~0.offset| 0)) (.cse4 (@diff .cse3 .cse2)) (.cse8 (select .cse19 .cse15)) (.cse17 (select .cse21 .cse13)) (.cse11 (select .cse3 (+ |c_~#arr~0.offset| (* c_~top~0 4)))) (.cse18 (select .cse19 .cse20)) (.cse0 (select .cse19 0))) (and (< (div .cse0 (- 4294967296)) (+ (div (+ 399 (* .cse0 (- 1))) 4294967296) 1)) .cse1 (= .cse2 (store .cse3 .cse4 0)) (= |c_t1Thread1of1ForFork1_push_~stack#1.base| |c_~#arr~0.base|) (= .cse2 (store .cse5 .cse6 0)) (< (div |c_t1Thread1of1ForFork1_push_~x#1| (- 4294967296)) (+ (div (+ 399 (* |c_t1Thread1of1ForFork1_push_~x#1| (- 1))) 4294967296) 1)) (< .cse0 4294967296) .cse7 (<= 0 .cse8) (<= 0 .cse9) (forall ((|v_t1Thread1of1ForFork1_push_#t~ret38#1_126| Int) (|t1Thread1of1ForFork1_push_~x#1| Int)) (or (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296))) (< |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| c_~top~0))) (<= .cse10 399) (<= 0 |c_t1Thread1of1ForFork1_push_~x#1|) (< (div .cse11 (- 4294967296)) (+ (div (+ 399 (* .cse11 (- 1))) 4294967296) 1)) (not (= |c_~#m~0.base| |c_~#arr~0.base|)) (<= 0 .cse10) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork1_push_~stack#1.offset|) (< .cse11 4294967296) (= .cse2 (store .cse12 .cse13 0)) (<= .cse9 399) (= .cse2 (store .cse14 .cse15 0)) (or (= .cse2 .cse3) (let ((.cse16 (select .cse3 .cse4))) (and .cse1 (<= 0 .cse16) .cse7 (<= .cse4 0) (<= .cse16 399)))) (<= .cse17 399) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_~#arr~0.base|)) (<= |c_t1Thread1of1ForFork1_push_~x#1| 399) (<= .cse8 399) (<= 0 .cse17) (<= 0 .cse11) (< |c_t1Thread1of1ForFork1_push_~x#1| 4294967296) (<= 0 .cse18) (<= .cse18 399) (<= 0 .cse0) (= |c_t2Thread1of1ForFork0_pop_~stack#1.offset| 0))))))) is different from false [2021-11-12 23:33:26,486 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse19 (select |c_#memory_int| |c_t2Thread1of1ForFork0_pop_~stack#1.base|)) (.cse21 (select |c_#memory_int| |c_t2Thread1of1ForFork0_pop_#in~stack#1.base|)) (.cse2 ((as const (Array Int Int)) 0))) (let ((.cse22 (@diff .cse21 .cse2)) (.cse20 (@diff .cse19 .cse2))) (let ((.cse5 (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|)) (.cse14 (store .cse19 .cse20 0)) (.cse12 (store .cse21 .cse22 0))) (let ((.cse13 (@diff .cse12 .cse2)) (.cse15 (@diff .cse14 .cse2)) (.cse3 (select |c_#memory_int| |c_~#arr~0.base|)) (.cse6 (@diff .cse5 .cse2))) (let ((.cse10 (select (store .cse5 (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |c_t1Thread1of1ForFork1_push_#t~ret38#1| 4)) |c_t1Thread1of1ForFork1_push_~x#1|) .cse6)) (.cse9 (select .cse21 .cse22)) (.cse1 (= c_~top~0 0)) (.cse7 (= |c_~#arr~0.offset| 0)) (.cse4 (@diff .cse3 .cse2)) (.cse8 (select .cse19 .cse15)) (.cse17 (select .cse21 .cse13)) (.cse11 (select .cse3 (+ |c_~#arr~0.offset| (* c_~top~0 4)))) (.cse18 (select .cse19 .cse20)) (.cse0 (select .cse19 0))) (and (< (div .cse0 (- 4294967296)) (+ (div (+ 399 (* .cse0 (- 1))) 4294967296) 1)) .cse1 (= .cse2 (store .cse3 .cse4 0)) (= |c_t1Thread1of1ForFork1_push_~stack#1.base| |c_~#arr~0.base|) (= .cse2 (store .cse5 .cse6 0)) (< (div |c_t1Thread1of1ForFork1_push_~x#1| (- 4294967296)) (+ (div (+ 399 (* |c_t1Thread1of1ForFork1_push_~x#1| (- 1))) 4294967296) 1)) (< .cse0 4294967296) .cse7 (<= 0 .cse8) (<= 0 .cse9) (forall ((|v_t1Thread1of1ForFork1_push_#t~ret38#1_126| Int) (|t1Thread1of1ForFork1_push_~x#1| Int)) (or (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296))) (< |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| c_~top~0))) (<= .cse10 399) (<= 0 |c_t1Thread1of1ForFork1_push_~x#1|) (< (div .cse11 (- 4294967296)) (+ (div (+ 399 (* .cse11 (- 1))) 4294967296) 1)) (not (= |c_~#m~0.base| |c_~#arr~0.base|)) (<= 0 .cse10) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork1_push_~stack#1.offset|) (< .cse11 4294967296) (= .cse2 (store .cse12 .cse13 0)) (<= .cse9 399) (= .cse2 (store .cse14 .cse15 0)) (or (= .cse2 .cse3) (let ((.cse16 (select .cse3 .cse4))) (and .cse1 (<= 0 .cse16) .cse7 (<= .cse4 0) (<= .cse16 399)))) (<= .cse17 399) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_~#arr~0.base|)) (<= |c_t1Thread1of1ForFork1_push_~x#1| 399) (<= .cse8 399) (<= 0 .cse17) (<= 0 .cse11) (= |c_t2Thread1of1ForFork0_pop_#t~ret41#1| 0) (< |c_t1Thread1of1ForFork1_push_~x#1| 4294967296) (<= 0 .cse18) (<= .cse18 399) (<= 0 .cse0) (= |c_t2Thread1of1ForFork0_pop_~stack#1.offset| 0))))))) is different from false [2021-11-12 23:33:34,104 WARN L838 $PredicateComparison]: unable to prove that (and (not (= 4294967294 (mod |c_t1Thread1of1ForFork1_push_~x#1| 4294967296))) (forall ((|ULTIMATE.start_main_~#id2~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~pre52#1_49| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base|) |ULTIMATE.start_main_~#id2~0#1.offset| |v_ULTIMATE.start_main_#t~pre52#1_49|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))) (= |c_t1Thread1of1ForFork1_push_~stack#1.base| |c_~#arr~0.base|) (forall ((|v_t1Thread1of1ForFork1_push_#t~ret38#1_126| Int) (|t1Thread1of1ForFork1_push_~x#1| Int)) (or (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296))) (< |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| c_~top~0))) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork1_push_~stack#1.offset|) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_~#arr~0.base|))) is different from false [2021-11-12 23:33:37,098 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int| |c_~#arr~0.base|)) (.cse3 ((as const (Array Int Int)) 0))) (let ((.cse7 (@diff .cse6 .cse3))) (let ((.cse4 (store .cse6 .cse7 0))) (let ((.cse5 (@diff .cse4 .cse3))) (let ((.cse1 (select .cse6 .cse7)) (.cse0 (select .cse6 .cse5)) (.cse2 (select .cse6 |c_~#arr~0.offset|))) (and (<= 0 .cse0) (<= 0 .cse1) (forall ((|ULTIMATE.start_main_~#id2~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~pre52#1_49| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base|) |ULTIMATE.start_main_~#id2~0#1.offset| |v_ULTIMATE.start_main_#t~pre52#1_49|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))) (= |c_~#arr~0.offset| 0) (<= 0 .cse2) (= c_~top~0 2) (<= .cse1 399) (forall ((|v_t1Thread1of1ForFork1_push_#t~ret38#1_126| Int) (|t1Thread1of1ForFork1_push_~x#1| Int)) (or (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296))) (< |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| c_~top~0))) (= .cse3 (store .cse4 .cse5 0)) (not (= |c_~#m~0.base| |c_~#arr~0.base|)) (<= .cse0 399) (< (div .cse2 (- 4294967296)) (+ (div (+ (* .cse2 (- 1)) 399) 4294967296) 1)) (< .cse2 4294967296))))))) is different from false [2021-11-12 23:33:39,651 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|t1Thread1of1ForFork1_push_~x#1| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |c_t1Thread1of1ForFork1_push_#t~ret38#1| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))) (forall ((|v_t1Thread1of1ForFork1_push_#t~ret38#1_126| Int) (|t1Thread1of1ForFork1_push_~x#1| Int)) (or (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296))) (< |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| c_~top~0)))) is different from false [2021-11-12 23:34:09,557 WARN L227 SmtUtils]: Spent 10.12s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 23:34:28,183 WARN L838 $PredicateComparison]: unable to prove that (and (not (= 4294967294 (mod |c_t1Thread1of1ForFork1_push_~x#1| 4294967296))) (forall ((|ULTIMATE.start_main_~#id2~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~pre52#1_49| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base|) |ULTIMATE.start_main_~#id2~0#1.offset| |v_ULTIMATE.start_main_#t~pre52#1_49|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))) (= |c_t1Thread1of1ForFork1_push_~stack#1.base| |c_~#arr~0.base|) (forall ((|t1Thread1of1ForFork1_push_~x#1| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |c_t1Thread1of1ForFork1_push_#t~ret38#1| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))) (forall ((|v_t1Thread1of1ForFork1_push_#t~ret38#1_126| Int) (|t1Thread1of1ForFork1_push_~x#1| Int)) (or (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296))) (< |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| c_~top~0))) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork1_push_~stack#1.offset|) (= (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* 4 |c_t1Thread1of1ForFork1_push_#t~ret38#1|)) (+ |c_~#arr~0.offset| (* 4 c_~top~0))) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_~#arr~0.base|))) is different from false [2021-11-12 23:34:44,948 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse16 (select |c_#memory_int| |c_~#arr~0.base|)) (.cse14 (select |c_#memory_int| |c_t2Thread1of1ForFork0_pop_~stack#1.base|)) (.cse17 (select |c_#memory_int| |c_t2Thread1of1ForFork0_pop_#in~stack#1.base|)) (.cse5 ((as const (Array Int Int)) 0))) (let ((.cse18 (@diff .cse17 .cse5)) (.cse15 (@diff .cse14 .cse5)) (.cse19 (@diff .cse16 .cse5))) (let ((.cse6 (store .cse16 .cse19 0)) (.cse10 (store .cse14 .cse15 0)) (.cse8 (store .cse17 .cse18 0))) (let ((.cse9 (@diff .cse8 .cse5)) (.cse11 (@diff .cse10 .cse5)) (.cse7 (@diff .cse6 .cse5))) (let ((.cse1 (select .cse16 .cse19)) (.cse0 (select .cse16 .cse7)) (.cse4 (select .cse17 .cse18)) (.cse3 (select .cse14 .cse11)) (.cse12 (select .cse17 .cse9)) (.cse2 (select .cse16 |c_~#arr~0.offset|)) (.cse13 (select .cse14 .cse15))) (and (<= 0 .cse0) (<= 0 .cse1) (forall ((|ULTIMATE.start_main_~#id2~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~pre52#1_49| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base|) |ULTIMATE.start_main_~#id2~0#1.offset| |v_ULTIMATE.start_main_#t~pre52#1_49|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))) (= |c_~#arr~0.offset| 0) (<= 0 .cse2) (= c_~top~0 2) (<= .cse1 399) (<= 0 .cse3) (<= 0 .cse4) (= .cse5 (store .cse6 .cse7 0)) (not (= |c_~#m~0.base| |c_~#arr~0.base|)) (<= .cse0 399) (= .cse5 (store .cse8 .cse9 0)) (<= .cse4 399) (= .cse5 (store .cse10 .cse11 0)) (<= .cse12 399) (<= .cse3 399) (<= 0 .cse12) (< (div .cse2 (- 4294967296)) (+ (div (+ (* .cse2 (- 1)) 399) 4294967296) 1)) (< .cse2 4294967296) (<= 0 .cse13) (<= .cse13 399))))))) is different from false [2021-11-12 23:35:55,260 WARN L227 SmtUtils]: Spent 11.50s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 23:36:22,189 WARN L227 SmtUtils]: Spent 6.18s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-12 23:36:30,192 WARN L838 $PredicateComparison]: unable to prove that (and (= c_~top~0 0) (forall ((|ULTIMATE.start_main_~#id2~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~pre52#1_49| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base|) |ULTIMATE.start_main_~#id2~0#1.offset| |v_ULTIMATE.start_main_#t~pre52#1_49|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))) (= |c_t1Thread1of1ForFork1_push_~stack#1.base| |c_~#arr~0.base|) (< (div |c_t1Thread1of1ForFork1_push_~x#1| (- 4294967296)) (+ (div (+ 399 (* |c_t1Thread1of1ForFork1_push_~x#1| (- 1))) 4294967296) 1)) (forall ((|t1Thread1of1ForFork1_push_~x#1| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |c_t1Thread1of1ForFork1_push_#t~ret38#1| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))) (= |c_~#arr~0.offset| 0) (forall ((|v_t1Thread1of1ForFork1_push_#t~ret38#1_126| Int) (|t1Thread1of1ForFork1_push_~x#1| Int)) (or (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296))) (< |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| c_~top~0))) (<= 0 |c_t1Thread1of1ForFork1_push_~x#1|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork1_push_~stack#1.offset|) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_~#arr~0.base|)) (< |c_t1Thread1of1ForFork1_push_~x#1| 4294967296) (= |c_t1Thread1of1ForFork1_push_#t~ret38#1| c_~top~0)) is different from false [2021-11-12 23:36:31,606 WARN L838 $PredicateComparison]: unable to prove that (and (= c_~top~0 0) (forall ((|ULTIMATE.start_main_~#id2~0#1.offset| Int) (|v_ULTIMATE.start_main_#t~pre52#1_49| Int)) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base|) |ULTIMATE.start_main_~#id2~0#1.offset| |v_ULTIMATE.start_main_#t~pre52#1_49|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296)))) (= |c_t1Thread1of1ForFork1_push_~stack#1.base| |c_~#arr~0.base|) (< (div |c_t1Thread1of1ForFork1_push_~x#1| (- 4294967296)) (+ (div (+ 399 (* |c_t1Thread1of1ForFork1_push_~x#1| (- 1))) 4294967296) 1)) (= |c_~#arr~0.offset| 0) (forall ((|v_t1Thread1of1ForFork1_push_#t~ret38#1_126| Int) (|t1Thread1of1ForFork1_push_~x#1| Int)) (or (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_push_~stack#1.base|) (+ |c_t1Thread1of1ForFork1_push_~stack#1.offset| (* |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| 4)) |t1Thread1of1ForFork1_push_~x#1|)) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4) (- 4))) 4294967296))) (< |v_t1Thread1of1ForFork1_push_#t~ret38#1_126| c_~top~0))) (<= 0 |c_t1Thread1of1ForFork1_push_~x#1|) (= |c_~#arr~0.offset| |c_t1Thread1of1ForFork1_push_~stack#1.offset|) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_~#arr~0.base|)) (< |c_t1Thread1of1ForFork1_push_~x#1| 4294967296)) is different from false