./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:57:12,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:57:12,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:57:13,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:57:13,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:57:13,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:57:13,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:57:13,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:57:13,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:57:13,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:57:13,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:57:13,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:57:13,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:57:13,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:57:13,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:57:13,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:57:13,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:57:13,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:57:13,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:57:13,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:57:13,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:57:13,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:57:13,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:57:13,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:57:13,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:57:13,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:57:13,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:57:13,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:57:13,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:57:13,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:57:13,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:57:13,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:57:13,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:57:13,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:57:13,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:57:13,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:57:13,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:57:13,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:57:13,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:57:13,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:57:13,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:57:13,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 08:57:13,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:57:13,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:57:13,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:57:13,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:57:13,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:57:13,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:57:13,144 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:57:13,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:57:13,144 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:57:13,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:57:13,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:57:13,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:57:13,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:57:13,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:57:13,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:57:13,146 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:57:13,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:57:13,146 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:57:13,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:57:13,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:57:13,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:57:13,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:57:13,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:57:13,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:57:13,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:57:13,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:57:13,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:57:13,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:57:13,149 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:57:13,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:57:13,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:57:13,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:57:13,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da [2021-11-09 08:57:13,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:57:13,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:57:13,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:57:13,536 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:57:13,537 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:57:13,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2021-11-09 08:57:13,605 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/data/4ea9f98ad/5d91c485dd094b2cba8ea7296f5109b2/FLAG19099557d [2021-11-09 08:57:14,148 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:57:14,149 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2021-11-09 08:57:14,157 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/data/4ea9f98ad/5d91c485dd094b2cba8ea7296f5109b2/FLAG19099557d [2021-11-09 08:57:14,476 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/data/4ea9f98ad/5d91c485dd094b2cba8ea7296f5109b2 [2021-11-09 08:57:14,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:57:14,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:57:14,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:57:14,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:57:14,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:57:14,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:57:14" (1/1) ... [2021-11-09 08:57:14,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d627ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14, skipping insertion in model container [2021-11-09 08:57:14,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:57:14" (1/1) ... [2021-11-09 08:57:14,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:57:14,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:57:14,827 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_28701367-a9cc-4691-b636-c870744927b2/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2021-11-09 08:57:14,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:57:14,850 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:57:14,878 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_28701367-a9cc-4691-b636-c870744927b2/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2021-11-09 08:57:14,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:57:14,899 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:57:14,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14 WrapperNode [2021-11-09 08:57:14,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:57:14,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:57:14,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:57:14,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:57:14,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14" (1/1) ... [2021-11-09 08:57:14,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14" (1/1) ... [2021-11-09 08:57:14,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:57:14,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:57:14,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:57:14,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:57:14,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14" (1/1) ... [2021-11-09 08:57:14,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14" (1/1) ... [2021-11-09 08:57:14,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14" (1/1) ... [2021-11-09 08:57:14,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14" (1/1) ... [2021-11-09 08:57:14,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14" (1/1) ... [2021-11-09 08:57:15,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14" (1/1) ... [2021-11-09 08:57:15,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14" (1/1) ... [2021-11-09 08:57:15,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:57:15,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:57:15,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:57:15,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:57:15,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14" (1/1) ... [2021-11-09 08:57:15,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:57:15,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:15,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:57:15,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:57:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-09 08:57:15,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-09 08:57:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-09 08:57:15,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-09 08:57:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:57:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:57:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:57:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 08:57:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:57:15,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:57:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 08:57:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:57:15,116 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-09 08:57:15,690 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:57:15,690 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-11-09 08:57:15,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:57:15 BoogieIcfgContainer [2021-11-09 08:57:15,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:57:15,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:57:15,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:57:15,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:57:15,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:57:14" (1/3) ... [2021-11-09 08:57:15,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bed02a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:57:15, skipping insertion in model container [2021-11-09 08:57:15,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:14" (2/3) ... [2021-11-09 08:57:15,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bed02a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:57:15, skipping insertion in model container [2021-11-09 08:57:15,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:57:15" (3/3) ... [2021-11-09 08:57:15,702 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-array-int-symm.wvr.c [2021-11-09 08:57:15,708 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-09 08:57:15,708 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:57:15,708 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 08:57:15,709 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-09 08:57:15,751 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,752 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,752 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,752 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,753 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,753 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,753 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,753 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,754 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,754 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,754 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,754 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,754 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,755 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,755 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,755 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,755 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,756 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,757 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,757 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,757 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,757 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,758 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,758 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,758 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,758 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,758 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,759 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,759 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,759 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,759 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,759 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,760 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,760 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,760 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,760 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,760 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,761 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,761 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,761 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,761 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,762 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,762 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,763 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,763 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,763 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,763 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,763 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,764 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,764 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,764 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,764 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,764 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,765 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,765 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,765 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,765 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,765 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,766 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,766 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,766 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,766 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,766 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,767 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,767 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,767 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,768 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,768 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,768 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,768 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,768 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,769 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,769 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,769 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,769 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,769 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,770 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,770 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,770 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,770 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,771 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,771 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,771 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,771 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,771 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,772 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,772 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,772 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,773 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,773 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,773 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,773 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,774 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,774 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,774 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,774 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,775 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,775 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,779 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,779 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,779 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,780 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,780 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,780 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,780 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,780 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,781 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,781 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,781 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,781 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,781 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,782 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,782 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,782 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,782 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,782 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,783 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,783 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,783 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,783 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,783 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,784 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,784 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,784 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,784 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,784 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,785 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,785 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,785 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,785 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,785 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,786 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,786 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,786 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,786 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,786 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,787 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,787 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,787 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,787 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,787 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,787 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,788 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,788 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,788 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,788 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,788 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,789 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,790 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,790 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,790 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,790 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,790 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,791 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,791 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,791 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,791 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,791 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,792 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,792 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,792 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,792 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,792 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,792 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,793 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,793 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,793 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,793 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,793 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,793 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,794 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,794 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,794 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,794 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,794 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,794 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,795 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,795 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,795 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,795 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,796 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,796 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,796 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,796 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,797 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,797 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,797 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,797 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,797 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,798 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,798 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,798 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,798 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,798 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,799 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,799 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,799 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,799 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,804 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,805 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,805 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,805 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,805 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,805 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,806 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,806 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,807 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,807 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,807 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,807 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,813 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,813 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,813 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,813 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,813 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,814 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,814 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,814 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,814 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,814 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,814 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,815 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,815 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,815 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,815 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,815 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:57:15,822 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-09 08:57:15,876 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:57:15,883 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:57:15,883 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-09 08:57:15,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 210 places, 224 transitions, 464 flow [2021-11-09 08:57:16,044 INFO L129 PetriNetUnfolder]: 21/222 cut-off events. [2021-11-09 08:57:16,044 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-09 08:57:16,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 222 events. 21/222 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 309 event pairs, 0 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 144. Up to 3 conditions per place. [2021-11-09 08:57:16,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 224 transitions, 464 flow [2021-11-09 08:57:16,061 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 214 transitions, 440 flow [2021-11-09 08:57:16,140 INFO L129 PetriNetUnfolder]: 21/213 cut-off events. [2021-11-09 08:57:16,140 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-09 08:57:16,140 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:16,141 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:16,142 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:16,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:16,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1593184024, now seen corresponding path program 1 times [2021-11-09 08:57:16,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:16,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149611278] [2021-11-09 08:57:16,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:16,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:16,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:16,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:16,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149611278] [2021-11-09 08:57:16,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149611278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:16,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:16,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:57:16,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727537197] [2021-11-09 08:57:16,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:57:16,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:16,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:57:16,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:57:16,581 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 224 [2021-11-09 08:57:16,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 214 transitions, 440 flow. Second operand has 2 states, 2 states have (on average 209.0) internal successors, (418), 2 states have internal predecessors, (418), 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) [2021-11-09 08:57:16,590 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:16,590 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 224 [2021-11-09 08:57:16,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:16,659 INFO L129 PetriNetUnfolder]: 6/199 cut-off events. [2021-11-09 08:57:16,660 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-09 08:57:16,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 199 events. 6/199 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 298 event pairs, 0 based on Foata normal form. 15/197 useless extension candidates. Maximal degree in co-relation 205. Up to 2 conditions per place. [2021-11-09 08:57:16,664 INFO L132 encePairwiseOnDemand]: 209/224 looper letters, 0 selfloop transitions, 0 changer transitions 7/199 dead transitions. [2021-11-09 08:57:16,664 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 199 transitions, 410 flow [2021-11-09 08:57:16,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:57:16,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-09 08:57:16,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 431 transitions. [2021-11-09 08:57:16,681 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9620535714285714 [2021-11-09 08:57:16,682 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 431 transitions. [2021-11-09 08:57:16,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 431 transitions. [2021-11-09 08:57:16,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:16,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 431 transitions. [2021-11-09 08:57:16,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 215.5) internal successors, (431), 2 states have internal predecessors, (431), 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) [2021-11-09 08:57:16,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2021-11-09 08:57:16,709 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2021-11-09 08:57:16,711 INFO L186 Difference]: Start difference. First operand has 200 places, 214 transitions, 440 flow. Second operand 2 states and 431 transitions. [2021-11-09 08:57:16,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 199 transitions, 410 flow [2021-11-09 08:57:16,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 199 transitions, 402 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-09 08:57:16,721 INFO L242 Difference]: Finished difference. Result has 197 places, 192 transitions, 388 flow [2021-11-09 08:57:16,724 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=388, PETRI_PLACES=197, PETRI_TRANSITIONS=192} [2021-11-09 08:57:16,725 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, -3 predicate places. [2021-11-09 08:57:16,725 INFO L470 AbstractCegarLoop]: Abstraction has has 197 places, 192 transitions, 388 flow [2021-11-09 08:57:16,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 209.0) internal successors, (418), 2 states have internal predecessors, (418), 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) [2021-11-09 08:57:16,726 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:16,727 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:16,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:57:16,727 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:16,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash -688731414, now seen corresponding path program 1 times [2021-11-09 08:57:16,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:16,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804729083] [2021-11-09 08:57:16,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:16,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:17,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:17,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:17,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804729083] [2021-11-09 08:57:17,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804729083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:17,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:17,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-09 08:57:17,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481963716] [2021-11-09 08:57:17,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-09 08:57:17,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:17,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-09 08:57:17,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:57:17,868 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 224 [2021-11-09 08:57:17,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 192 transitions, 388 flow. Second operand has 20 states, 20 states have (on average 141.5) internal successors, (2830), 20 states have internal predecessors, (2830), 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) [2021-11-09 08:57:17,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:17,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 224 [2021-11-09 08:57:17,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:19,720 INFO L129 PetriNetUnfolder]: 100/1262 cut-off events. [2021-11-09 08:57:19,721 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 08:57:19,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 1262 events. 100/1262 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 8817 event pairs, 37 based on Foata normal form. 1/1133 useless extension candidates. Maximal degree in co-relation 1535. Up to 74 conditions per place. [2021-11-09 08:57:19,739 INFO L132 encePairwiseOnDemand]: 197/224 looper letters, 125 selfloop transitions, 27 changer transitions 11/293 dead transitions. [2021-11-09 08:57:19,739 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 293 transitions, 916 flow [2021-11-09 08:57:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 08:57:19,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-11-09 08:57:19,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3500 transitions. [2021-11-09 08:57:19,757 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6510416666666666 [2021-11-09 08:57:19,757 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3500 transitions. [2021-11-09 08:57:19,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3500 transitions. [2021-11-09 08:57:19,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:19,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3500 transitions. [2021-11-09 08:57:19,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 145.83333333333334) internal successors, (3500), 24 states have internal predecessors, (3500), 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) [2021-11-09 08:57:19,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 224.0) internal successors, (5600), 25 states have internal predecessors, (5600), 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) [2021-11-09 08:57:19,803 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 224.0) internal successors, (5600), 25 states have internal predecessors, (5600), 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) [2021-11-09 08:57:19,803 INFO L186 Difference]: Start difference. First operand has 197 places, 192 transitions, 388 flow. Second operand 24 states and 3500 transitions. [2021-11-09 08:57:19,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 293 transitions, 916 flow [2021-11-09 08:57:19,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 293 transitions, 916 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-09 08:57:19,825 INFO L242 Difference]: Finished difference. Result has 225 places, 208 transitions, 536 flow [2021-11-09 08:57:19,826 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=536, PETRI_PLACES=225, PETRI_TRANSITIONS=208} [2021-11-09 08:57:19,827 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 25 predicate places. [2021-11-09 08:57:19,827 INFO L470 AbstractCegarLoop]: Abstraction has has 225 places, 208 transitions, 536 flow [2021-11-09 08:57:19,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 141.5) internal successors, (2830), 20 states have internal predecessors, (2830), 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) [2021-11-09 08:57:19,829 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:19,830 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:19,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:57:19,830 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:19,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:19,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1568889262, now seen corresponding path program 2 times [2021-11-09 08:57:19,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:19,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453798594] [2021-11-09 08:57:19,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:19,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:20,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:20,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:20,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453798594] [2021-11-09 08:57:20,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453798594] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:20,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:20,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-09 08:57:20,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086349967] [2021-11-09 08:57:20,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-09 08:57:20,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:20,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-09 08:57:20,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:57:20,517 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 224 [2021-11-09 08:57:20,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 208 transitions, 536 flow. Second operand has 20 states, 20 states have (on average 141.5) internal successors, (2830), 20 states have internal predecessors, (2830), 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) [2021-11-09 08:57:20,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:20,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 224 [2021-11-09 08:57:20,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:21,934 INFO L129 PetriNetUnfolder]: 98/1292 cut-off events. [2021-11-09 08:57:21,935 INFO L130 PetriNetUnfolder]: For 143/155 co-relation queries the response was YES. [2021-11-09 08:57:21,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1755 conditions, 1292 events. 98/1292 cut-off events. For 143/155 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 8932 event pairs, 33 based on Foata normal form. 5/1173 useless extension candidates. Maximal degree in co-relation 1739. Up to 74 conditions per place. [2021-11-09 08:57:21,949 INFO L132 encePairwiseOnDemand]: 197/224 looper letters, 125 selfloop transitions, 29 changer transitions 11/295 dead transitions. [2021-11-09 08:57:21,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 295 transitions, 1090 flow [2021-11-09 08:57:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 08:57:21,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-11-09 08:57:21,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3500 transitions. [2021-11-09 08:57:21,962 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6510416666666666 [2021-11-09 08:57:21,962 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3500 transitions. [2021-11-09 08:57:21,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3500 transitions. [2021-11-09 08:57:21,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:21,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3500 transitions. [2021-11-09 08:57:21,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 145.83333333333334) internal successors, (3500), 24 states have internal predecessors, (3500), 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) [2021-11-09 08:57:21,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 224.0) internal successors, (5600), 25 states have internal predecessors, (5600), 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) [2021-11-09 08:57:21,992 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 224.0) internal successors, (5600), 25 states have internal predecessors, (5600), 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) [2021-11-09 08:57:21,993 INFO L186 Difference]: Start difference. First operand has 225 places, 208 transitions, 536 flow. Second operand 24 states and 3500 transitions. [2021-11-09 08:57:21,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 295 transitions, 1090 flow [2021-11-09 08:57:21,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 295 transitions, 1056 flow, removed 9 selfloop flow, removed 9 redundant places. [2021-11-09 08:57:22,004 INFO L242 Difference]: Finished difference. Result has 242 places, 213 transitions, 629 flow [2021-11-09 08:57:22,005 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=629, PETRI_PLACES=242, PETRI_TRANSITIONS=213} [2021-11-09 08:57:22,005 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 42 predicate places. [2021-11-09 08:57:22,005 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 213 transitions, 629 flow [2021-11-09 08:57:22,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 141.5) internal successors, (2830), 20 states have internal predecessors, (2830), 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) [2021-11-09 08:57:22,007 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:22,007 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:22,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 08:57:22,007 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:22,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:22,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1469804173, now seen corresponding path program 1 times [2021-11-09 08:57:22,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:22,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370147260] [2021-11-09 08:57:22,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:22,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:22,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:22,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:22,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370147260] [2021-11-09 08:57:22,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370147260] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:22,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620079723] [2021-11-09 08:57:22,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:22,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:22,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:22,251 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:22,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 08:57:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:22,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-09 08:57:22,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:23,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:23,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620079723] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:23,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:23,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 24 [2021-11-09 08:57:23,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893523744] [2021-11-09 08:57:23,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-09 08:57:23,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:23,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-09 08:57:23,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:57:23,185 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 224 [2021-11-09 08:57:23,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 213 transitions, 629 flow. Second operand has 24 states, 24 states have (on average 142.41666666666666) internal successors, (3418), 24 states have internal predecessors, (3418), 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) [2021-11-09 08:57:23,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:23,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 224 [2021-11-09 08:57:23,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:24,225 INFO L129 PetriNetUnfolder]: 107/1493 cut-off events. [2021-11-09 08:57:24,226 INFO L130 PetriNetUnfolder]: For 388/403 co-relation queries the response was YES. [2021-11-09 08:57:24,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2097 conditions, 1493 events. 107/1493 cut-off events. For 388/403 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10902 event pairs, 34 based on Foata normal form. 1/1347 useless extension candidates. Maximal degree in co-relation 2078. Up to 112 conditions per place. [2021-11-09 08:57:24,241 INFO L132 encePairwiseOnDemand]: 204/224 looper letters, 138 selfloop transitions, 20 changer transitions 3/291 dead transitions. [2021-11-09 08:57:24,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 291 transitions, 1171 flow [2021-11-09 08:57:24,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:57:24,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-09 08:57:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2658 transitions. [2021-11-09 08:57:24,252 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6592261904761905 [2021-11-09 08:57:24,252 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2658 transitions. [2021-11-09 08:57:24,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2658 transitions. [2021-11-09 08:57:24,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:24,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2658 transitions. [2021-11-09 08:57:24,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 147.66666666666666) internal successors, (2658), 18 states have internal predecessors, (2658), 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) [2021-11-09 08:57:24,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 224.0) internal successors, (4256), 19 states have internal predecessors, (4256), 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) [2021-11-09 08:57:24,278 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 224.0) internal successors, (4256), 19 states have internal predecessors, (4256), 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) [2021-11-09 08:57:24,278 INFO L186 Difference]: Start difference. First operand has 242 places, 213 transitions, 629 flow. Second operand 18 states and 2658 transitions. [2021-11-09 08:57:24,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 291 transitions, 1171 flow [2021-11-09 08:57:24,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 291 transitions, 1110 flow, removed 9 selfloop flow, removed 20 redundant places. [2021-11-09 08:57:24,296 INFO L242 Difference]: Finished difference. Result has 243 places, 219 transitions, 681 flow [2021-11-09 08:57:24,297 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=681, PETRI_PLACES=243, PETRI_TRANSITIONS=219} [2021-11-09 08:57:24,297 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 43 predicate places. [2021-11-09 08:57:24,298 INFO L470 AbstractCegarLoop]: Abstraction has has 243 places, 219 transitions, 681 flow [2021-11-09 08:57:24,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 142.41666666666666) internal successors, (3418), 24 states have internal predecessors, (3418), 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) [2021-11-09 08:57:24,301 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:24,301 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:24,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:24,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:24,527 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:24,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:24,527 INFO L85 PathProgramCache]: Analyzing trace with hash -533241320, now seen corresponding path program 1 times [2021-11-09 08:57:24,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:24,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492769682] [2021-11-09 08:57:24,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:24,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:24,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:24,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:24,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492769682] [2021-11-09 08:57:24,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492769682] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:24,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633733157] [2021-11-09 08:57:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:24,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:24,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:24,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:24,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 08:57:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:24,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-09 08:57:24,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:25,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:25,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633733157] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:25,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:25,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 24 [2021-11-09 08:57:25,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315191185] [2021-11-09 08:57:25,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-09 08:57:25,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:25,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-09 08:57:25,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:57:25,654 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 224 [2021-11-09 08:57:25,659 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 219 transitions, 681 flow. Second operand has 24 states, 24 states have (on average 142.5) internal successors, (3420), 24 states have internal predecessors, (3420), 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) [2021-11-09 08:57:25,659 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:25,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 224 [2021-11-09 08:57:25,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:26,760 INFO L129 PetriNetUnfolder]: 146/2008 cut-off events. [2021-11-09 08:57:26,761 INFO L130 PetriNetUnfolder]: For 800/831 co-relation queries the response was YES. [2021-11-09 08:57:26,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2877 conditions, 2008 events. 146/2008 cut-off events. For 800/831 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 16500 event pairs, 53 based on Foata normal form. 1/1806 useless extension candidates. Maximal degree in co-relation 2854. Up to 221 conditions per place. [2021-11-09 08:57:26,782 INFO L132 encePairwiseOnDemand]: 206/224 looper letters, 150 selfloop transitions, 18 changer transitions 7/305 dead transitions. [2021-11-09 08:57:26,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 305 transitions, 1317 flow [2021-11-09 08:57:26,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:57:26,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-11-09 08:57:26,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2523 transitions. [2021-11-09 08:57:26,792 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6625525210084033 [2021-11-09 08:57:26,793 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2523 transitions. [2021-11-09 08:57:26,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2523 transitions. [2021-11-09 08:57:26,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:26,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2523 transitions. [2021-11-09 08:57:26,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 148.41176470588235) internal successors, (2523), 17 states have internal predecessors, (2523), 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) [2021-11-09 08:57:26,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 224.0) internal successors, (4032), 18 states have internal predecessors, (4032), 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) [2021-11-09 08:57:26,816 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 224.0) internal successors, (4032), 18 states have internal predecessors, (4032), 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) [2021-11-09 08:57:26,816 INFO L186 Difference]: Start difference. First operand has 243 places, 219 transitions, 681 flow. Second operand 17 states and 2523 transitions. [2021-11-09 08:57:26,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 305 transitions, 1317 flow [2021-11-09 08:57:26,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 305 transitions, 1260 flow, removed 19 selfloop flow, removed 10 redundant places. [2021-11-09 08:57:26,828 INFO L242 Difference]: Finished difference. Result has 254 places, 227 transitions, 763 flow [2021-11-09 08:57:26,829 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=763, PETRI_PLACES=254, PETRI_TRANSITIONS=227} [2021-11-09 08:57:26,830 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 54 predicate places. [2021-11-09 08:57:26,830 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 227 transitions, 763 flow [2021-11-09 08:57:26,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 142.5) internal successors, (3420), 24 states have internal predecessors, (3420), 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) [2021-11-09 08:57:26,832 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:26,832 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:26,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-09 08:57:27,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:27,050 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:27,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:27,050 INFO L85 PathProgramCache]: Analyzing trace with hash 54841054, now seen corresponding path program 2 times [2021-11-09 08:57:27,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:27,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291871064] [2021-11-09 08:57:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:27,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:27,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:27,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:27,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291871064] [2021-11-09 08:57:27,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291871064] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:27,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274710520] [2021-11-09 08:57:27,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:57:27,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:27,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:27,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:27,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 08:57:27,538 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-09 08:57:27,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:27,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-09 08:57:27,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 08:57:28,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274710520] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:28,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 08:57:28,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2021-11-09 08:57:28,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594426052] [2021-11-09 08:57:28,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-09 08:57:28,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:28,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 08:57:28,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-11-09 08:57:28,244 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 224 [2021-11-09 08:57:28,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 227 transitions, 763 flow. Second operand has 12 states, 12 states have (on average 160.33333333333334) internal successors, (1924), 12 states have internal predecessors, (1924), 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) [2021-11-09 08:57:28,248 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:28,248 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 224 [2021-11-09 08:57:28,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:29,235 INFO L129 PetriNetUnfolder]: 145/2129 cut-off events. [2021-11-09 08:57:29,236 INFO L130 PetriNetUnfolder]: For 1102/1153 co-relation queries the response was YES. [2021-11-09 08:57:29,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3171 conditions, 2129 events. 145/2129 cut-off events. For 1102/1153 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 17506 event pairs, 7 based on Foata normal form. 15/1936 useless extension candidates. Maximal degree in co-relation 3142. Up to 182 conditions per place. [2021-11-09 08:57:29,257 INFO L132 encePairwiseOnDemand]: 209/224 looper letters, 74 selfloop transitions, 20 changer transitions 11/264 dead transitions. [2021-11-09 08:57:29,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 264 transitions, 1131 flow [2021-11-09 08:57:29,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-09 08:57:29,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-09 08:57:29,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2276 transitions. [2021-11-09 08:57:29,266 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7257653061224489 [2021-11-09 08:57:29,266 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2276 transitions. [2021-11-09 08:57:29,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2276 transitions. [2021-11-09 08:57:29,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:29,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2276 transitions. [2021-11-09 08:57:29,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 162.57142857142858) internal successors, (2276), 14 states have internal predecessors, (2276), 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) [2021-11-09 08:57:29,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 224.0) internal successors, (3360), 15 states have internal predecessors, (3360), 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) [2021-11-09 08:57:29,286 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 224.0) internal successors, (3360), 15 states have internal predecessors, (3360), 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) [2021-11-09 08:57:29,286 INFO L186 Difference]: Start difference. First operand has 254 places, 227 transitions, 763 flow. Second operand 14 states and 2276 transitions. [2021-11-09 08:57:29,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 264 transitions, 1131 flow [2021-11-09 08:57:29,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 264 transitions, 1044 flow, removed 30 selfloop flow, removed 12 redundant places. [2021-11-09 08:57:29,303 INFO L242 Difference]: Finished difference. Result has 265 places, 234 transitions, 854 flow [2021-11-09 08:57:29,304 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=854, PETRI_PLACES=265, PETRI_TRANSITIONS=234} [2021-11-09 08:57:29,304 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 65 predicate places. [2021-11-09 08:57:29,304 INFO L470 AbstractCegarLoop]: Abstraction has has 265 places, 234 transitions, 854 flow [2021-11-09 08:57:29,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 160.33333333333334) internal successors, (1924), 12 states have internal predecessors, (1924), 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) [2021-11-09 08:57:29,305 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:29,305 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:29,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:29,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:29,527 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:29,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:29,528 INFO L85 PathProgramCache]: Analyzing trace with hash -121503737, now seen corresponding path program 1 times [2021-11-09 08:57:29,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:29,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362764181] [2021-11-09 08:57:29,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:29,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:29,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:29,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:29,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362764181] [2021-11-09 08:57:29,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362764181] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:29,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493559822] [2021-11-09 08:57:29,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:29,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:29,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:29,799 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:29,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 08:57:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:30,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-09 08:57:30,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:30,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:30,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493559822] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:30,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:30,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 16 [2021-11-09 08:57:30,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761412578] [2021-11-09 08:57:30,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-09 08:57:30,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:30,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-09 08:57:30,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-11-09 08:57:30,869 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 224 [2021-11-09 08:57:30,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 234 transitions, 854 flow. Second operand has 16 states, 16 states have (on average 161.125) internal successors, (2578), 16 states have internal predecessors, (2578), 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) [2021-11-09 08:57:30,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:30,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 224 [2021-11-09 08:57:30,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:33,103 INFO L129 PetriNetUnfolder]: 1301/7873 cut-off events. [2021-11-09 08:57:33,103 INFO L130 PetriNetUnfolder]: For 3315/3317 co-relation queries the response was YES. [2021-11-09 08:57:33,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12079 conditions, 7873 events. 1301/7873 cut-off events. For 3315/3317 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 85101 event pairs, 820 based on Foata normal form. 2/7074 useless extension candidates. Maximal degree in co-relation 12043. Up to 829 conditions per place. [2021-11-09 08:57:33,216 INFO L132 encePairwiseOnDemand]: 206/224 looper letters, 156 selfloop transitions, 22 changer transitions 0/338 dead transitions. [2021-11-09 08:57:33,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 338 transitions, 1486 flow [2021-11-09 08:57:33,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:57:33,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-09 08:57:33,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3013 transitions. [2021-11-09 08:57:33,226 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7472718253968254 [2021-11-09 08:57:33,226 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3013 transitions. [2021-11-09 08:57:33,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3013 transitions. [2021-11-09 08:57:33,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:33,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3013 transitions. [2021-11-09 08:57:33,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 167.38888888888889) internal successors, (3013), 18 states have internal predecessors, (3013), 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) [2021-11-09 08:57:33,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 224.0) internal successors, (4256), 19 states have internal predecessors, (4256), 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) [2021-11-09 08:57:33,246 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 224.0) internal successors, (4256), 19 states have internal predecessors, (4256), 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) [2021-11-09 08:57:33,246 INFO L186 Difference]: Start difference. First operand has 265 places, 234 transitions, 854 flow. Second operand 18 states and 3013 transitions. [2021-11-09 08:57:33,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 338 transitions, 1486 flow [2021-11-09 08:57:33,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 338 transitions, 1435 flow, removed 18 selfloop flow, removed 11 redundant places. [2021-11-09 08:57:33,294 INFO L242 Difference]: Finished difference. Result has 266 places, 243 transitions, 916 flow [2021-11-09 08:57:33,295 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=916, PETRI_PLACES=266, PETRI_TRANSITIONS=243} [2021-11-09 08:57:33,295 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 66 predicate places. [2021-11-09 08:57:33,295 INFO L470 AbstractCegarLoop]: Abstraction has has 266 places, 243 transitions, 916 flow [2021-11-09 08:57:33,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 161.125) internal successors, (2578), 16 states have internal predecessors, (2578), 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) [2021-11-09 08:57:33,296 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:33,297 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:33,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:33,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:33,511 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:33,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:33,511 INFO L85 PathProgramCache]: Analyzing trace with hash -409247913, now seen corresponding path program 1 times [2021-11-09 08:57:33,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:33,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402309098] [2021-11-09 08:57:33,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:33,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:33,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:33,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:33,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402309098] [2021-11-09 08:57:33,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402309098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:33,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:33,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 08:57:33,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528926043] [2021-11-09 08:57:33,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:57:33,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:33,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:57:33,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:57:33,613 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 224 [2021-11-09 08:57:33,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 243 transitions, 916 flow. Second operand has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 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) [2021-11-09 08:57:33,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:33,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 224 [2021-11-09 08:57:33,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:34,537 INFO L129 PetriNetUnfolder]: 315/3728 cut-off events. [2021-11-09 08:57:34,537 INFO L130 PetriNetUnfolder]: For 1906/1928 co-relation queries the response was YES. [2021-11-09 08:57:34,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5633 conditions, 3728 events. 315/3728 cut-off events. For 1906/1928 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 35754 event pairs, 176 based on Foata normal form. 25/3480 useless extension candidates. Maximal degree in co-relation 5602. Up to 460 conditions per place. [2021-11-09 08:57:34,578 INFO L132 encePairwiseOnDemand]: 213/224 looper letters, 74 selfloop transitions, 12 changer transitions 2/258 dead transitions. [2021-11-09 08:57:34,578 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 258 transitions, 1143 flow [2021-11-09 08:57:34,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:57:34,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-09 08:57:34,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1748 transitions. [2021-11-09 08:57:34,582 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7803571428571429 [2021-11-09 08:57:34,583 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1748 transitions. [2021-11-09 08:57:34,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1748 transitions. [2021-11-09 08:57:34,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:34,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1748 transitions. [2021-11-09 08:57:34,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 174.8) internal successors, (1748), 10 states have internal predecessors, (1748), 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) [2021-11-09 08:57:34,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 224.0) internal successors, (2464), 11 states have internal predecessors, (2464), 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) [2021-11-09 08:57:34,594 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 224.0) internal successors, (2464), 11 states have internal predecessors, (2464), 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) [2021-11-09 08:57:34,594 INFO L186 Difference]: Start difference. First operand has 266 places, 243 transitions, 916 flow. Second operand 10 states and 1748 transitions. [2021-11-09 08:57:34,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 258 transitions, 1143 flow [2021-11-09 08:57:34,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 258 transitions, 1107 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-11-09 08:57:34,613 INFO L242 Difference]: Finished difference. Result has 267 places, 240 transitions, 881 flow [2021-11-09 08:57:34,614 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=881, PETRI_PLACES=267, PETRI_TRANSITIONS=240} [2021-11-09 08:57:34,614 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 67 predicate places. [2021-11-09 08:57:34,616 INFO L470 AbstractCegarLoop]: Abstraction has has 267 places, 240 transitions, 881 flow [2021-11-09 08:57:34,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 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) [2021-11-09 08:57:34,617 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:34,617 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:34,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 08:57:34,618 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:34,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:34,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1440029523, now seen corresponding path program 1 times [2021-11-09 08:57:34,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:34,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897523921] [2021-11-09 08:57:34,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:34,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:57:34,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:34,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897523921] [2021-11-09 08:57:34,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897523921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:34,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:34,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 08:57:34,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130158083] [2021-11-09 08:57:34,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:57:34,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:34,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:57:34,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:57:34,754 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 224 [2021-11-09 08:57:34,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 240 transitions, 881 flow. Second operand has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 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) [2021-11-09 08:57:34,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:34,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 224 [2021-11-09 08:57:34,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:35,344 INFO L129 PetriNetUnfolder]: 260/2432 cut-off events. [2021-11-09 08:57:35,344 INFO L130 PetriNetUnfolder]: For 1446/1464 co-relation queries the response was YES. [2021-11-09 08:57:35,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4113 conditions, 2432 events. 260/2432 cut-off events. For 1446/1464 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 19713 event pairs, 181 based on Foata normal form. 14/2268 useless extension candidates. Maximal degree in co-relation 4080. Up to 474 conditions per place. [2021-11-09 08:57:35,373 INFO L132 encePairwiseOnDemand]: 213/224 looper letters, 47 selfloop transitions, 8 changer transitions 34/251 dead transitions. [2021-11-09 08:57:35,374 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 251 transitions, 1092 flow [2021-11-09 08:57:35,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:57:35,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-09 08:57:35,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1746 transitions. [2021-11-09 08:57:35,377 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7794642857142857 [2021-11-09 08:57:35,377 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1746 transitions. [2021-11-09 08:57:35,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1746 transitions. [2021-11-09 08:57:35,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:35,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1746 transitions. [2021-11-09 08:57:35,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 174.6) internal successors, (1746), 10 states have internal predecessors, (1746), 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) [2021-11-09 08:57:35,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 224.0) internal successors, (2464), 11 states have internal predecessors, (2464), 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) [2021-11-09 08:57:35,388 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 224.0) internal successors, (2464), 11 states have internal predecessors, (2464), 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) [2021-11-09 08:57:35,388 INFO L186 Difference]: Start difference. First operand has 267 places, 240 transitions, 881 flow. Second operand 10 states and 1746 transitions. [2021-11-09 08:57:35,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 251 transitions, 1092 flow [2021-11-09 08:57:35,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 251 transitions, 1072 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-11-09 08:57:35,401 INFO L242 Difference]: Finished difference. Result has 270 places, 215 transitions, 685 flow [2021-11-09 08:57:35,402 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=685, PETRI_PLACES=270, PETRI_TRANSITIONS=215} [2021-11-09 08:57:35,403 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 70 predicate places. [2021-11-09 08:57:35,403 INFO L470 AbstractCegarLoop]: Abstraction has has 270 places, 215 transitions, 685 flow [2021-11-09 08:57:35,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 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) [2021-11-09 08:57:35,403 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:35,404 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:35,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 08:57:35,404 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:35,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:35,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1921324181, now seen corresponding path program 1 times [2021-11-09 08:57:35,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:35,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185225165] [2021-11-09 08:57:35,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:35,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:35,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 08:57:35,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:35,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185225165] [2021-11-09 08:57:35,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185225165] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:35,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344663709] [2021-11-09 08:57:35,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:35,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:35,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:35,996 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:36,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 08:57:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:36,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-09 08:57:36,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:38,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 08:57:38,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344663709] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:38,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:57:38,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 31 [2021-11-09 08:57:38,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719605647] [2021-11-09 08:57:38,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-09 08:57:38,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:38,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-09 08:57:38,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=826, Unknown=0, NotChecked=0, Total=930 [2021-11-09 08:57:38,453 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 224 [2021-11-09 08:57:38,457 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 215 transitions, 685 flow. Second operand has 31 states, 31 states have (on average 139.90322580645162) internal successors, (4337), 31 states have internal predecessors, (4337), 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) [2021-11-09 08:57:38,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:38,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 224 [2021-11-09 08:57:38,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:41,140 INFO L129 PetriNetUnfolder]: 396/5575 cut-off events. [2021-11-09 08:57:41,141 INFO L130 PetriNetUnfolder]: For 2948/3022 co-relation queries the response was YES. [2021-11-09 08:57:41,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8514 conditions, 5575 events. 396/5575 cut-off events. For 2948/3022 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 60120 event pairs, 140 based on Foata normal form. 16/5141 useless extension candidates. Maximal degree in co-relation 8480. Up to 357 conditions per place. [2021-11-09 08:57:41,233 INFO L132 encePairwiseOnDemand]: 200/224 looper letters, 180 selfloop transitions, 30 changer transitions 11/357 dead transitions. [2021-11-09 08:57:41,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 357 transitions, 1761 flow [2021-11-09 08:57:41,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-09 08:57:41,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-11-09 08:57:41,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3623 transitions. [2021-11-09 08:57:41,241 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6469642857142858 [2021-11-09 08:57:41,242 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3623 transitions. [2021-11-09 08:57:41,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3623 transitions. [2021-11-09 08:57:41,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:41,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3623 transitions. [2021-11-09 08:57:41,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 144.92) internal successors, (3623), 25 states have internal predecessors, (3623), 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) [2021-11-09 08:57:41,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 224.0) internal successors, (5824), 26 states have internal predecessors, (5824), 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) [2021-11-09 08:57:41,368 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 224.0) internal successors, (5824), 26 states have internal predecessors, (5824), 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) [2021-11-09 08:57:41,368 INFO L186 Difference]: Start difference. First operand has 270 places, 215 transitions, 685 flow. Second operand 25 states and 3623 transitions. [2021-11-09 08:57:41,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 357 transitions, 1761 flow [2021-11-09 08:57:41,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 357 transitions, 1592 flow, removed 65 selfloop flow, removed 25 redundant places. [2021-11-09 08:57:41,389 INFO L242 Difference]: Finished difference. Result has 260 places, 238 transitions, 878 flow [2021-11-09 08:57:41,390 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=878, PETRI_PLACES=260, PETRI_TRANSITIONS=238} [2021-11-09 08:57:41,390 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 60 predicate places. [2021-11-09 08:57:41,391 INFO L470 AbstractCegarLoop]: Abstraction has has 260 places, 238 transitions, 878 flow [2021-11-09 08:57:41,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 139.90322580645162) internal successors, (4337), 31 states have internal predecessors, (4337), 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) [2021-11-09 08:57:41,393 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:41,393 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:41,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:41,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-09 08:57:41,619 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:41,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:41,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1585379265, now seen corresponding path program 1 times [2021-11-09 08:57:41,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:41,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899404988] [2021-11-09 08:57:41,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:41,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:41,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 08:57:41,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:41,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899404988] [2021-11-09 08:57:41,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899404988] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:41,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:41,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 08:57:41,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566868092] [2021-11-09 08:57:41,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:57:41,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:41,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:57:41,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:57:41,734 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 224 [2021-11-09 08:57:41,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 238 transitions, 878 flow. Second operand has 7 states, 7 states have (on average 172.57142857142858) internal successors, (1208), 7 states have internal predecessors, (1208), 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) [2021-11-09 08:57:41,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:41,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 224 [2021-11-09 08:57:41,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:42,914 INFO L129 PetriNetUnfolder]: 533/5255 cut-off events. [2021-11-09 08:57:42,914 INFO L130 PetriNetUnfolder]: For 2913/2958 co-relation queries the response was YES. [2021-11-09 08:57:42,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8385 conditions, 5255 events. 533/5255 cut-off events. For 2913/2958 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 54435 event pairs, 353 based on Foata normal form. 31/4871 useless extension candidates. Maximal degree in co-relation 8350. Up to 987 conditions per place. [2021-11-09 08:57:42,978 INFO L132 encePairwiseOnDemand]: 215/224 looper letters, 66 selfloop transitions, 12 changer transitions 2/245 dead transitions. [2021-11-09 08:57:42,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 245 transitions, 1063 flow [2021-11-09 08:57:42,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:57:42,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-11-09 08:57:42,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1400 transitions. [2021-11-09 08:57:42,982 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.78125 [2021-11-09 08:57:42,982 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1400 transitions. [2021-11-09 08:57:42,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1400 transitions. [2021-11-09 08:57:42,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:42,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1400 transitions. [2021-11-09 08:57:42,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 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) [2021-11-09 08:57:42,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 224.0) internal successors, (2016), 9 states have internal predecessors, (2016), 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) [2021-11-09 08:57:42,993 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 224.0) internal successors, (2016), 9 states have internal predecessors, (2016), 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) [2021-11-09 08:57:42,993 INFO L186 Difference]: Start difference. First operand has 260 places, 238 transitions, 878 flow. Second operand 8 states and 1400 transitions. [2021-11-09 08:57:42,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 245 transitions, 1063 flow [2021-11-09 08:57:43,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 245 transitions, 1007 flow, removed 22 selfloop flow, removed 6 redundant places. [2021-11-09 08:57:43,017 INFO L242 Difference]: Finished difference. Result has 260 places, 235 transitions, 823 flow [2021-11-09 08:57:43,018 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=823, PETRI_PLACES=260, PETRI_TRANSITIONS=235} [2021-11-09 08:57:43,019 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 60 predicate places. [2021-11-09 08:57:43,019 INFO L470 AbstractCegarLoop]: Abstraction has has 260 places, 235 transitions, 823 flow [2021-11-09 08:57:43,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 172.57142857142858) internal successors, (1208), 7 states have internal predecessors, (1208), 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) [2021-11-09 08:57:43,020 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:43,020 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:43,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 08:57:43,021 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:43,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:43,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1151549013, now seen corresponding path program 1 times [2021-11-09 08:57:43,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:43,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208167927] [2021-11-09 08:57:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:43,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:43,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 08:57:43,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:43,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208167927] [2021-11-09 08:57:43,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208167927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:43,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:43,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 08:57:43,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732402324] [2021-11-09 08:57:43,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:57:43,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:43,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:57:43,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:57:43,138 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 224 [2021-11-09 08:57:43,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 235 transitions, 823 flow. Second operand has 7 states, 7 states have (on average 172.57142857142858) internal successors, (1208), 7 states have internal predecessors, (1208), 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) [2021-11-09 08:57:43,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:43,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 224 [2021-11-09 08:57:43,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:44,577 INFO L129 PetriNetUnfolder]: 563/7065 cut-off events. [2021-11-09 08:57:44,578 INFO L130 PetriNetUnfolder]: For 2726/2776 co-relation queries the response was YES. [2021-11-09 08:57:44,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10284 conditions, 7065 events. 563/7065 cut-off events. For 2726/2776 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 82330 event pairs, 321 based on Foata normal form. 19/6543 useless extension candidates. Maximal degree in co-relation 10249. Up to 936 conditions per place. [2021-11-09 08:57:44,666 INFO L132 encePairwiseOnDemand]: 215/224 looper letters, 57 selfloop transitions, 10 changer transitions 12/242 dead transitions. [2021-11-09 08:57:44,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 242 transitions, 1016 flow [2021-11-09 08:57:44,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:57:44,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-11-09 08:57:44,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1398 transitions. [2021-11-09 08:57:44,670 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7801339285714286 [2021-11-09 08:57:44,670 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1398 transitions. [2021-11-09 08:57:44,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1398 transitions. [2021-11-09 08:57:44,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:44,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1398 transitions. [2021-11-09 08:57:44,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 174.75) internal successors, (1398), 8 states have internal predecessors, (1398), 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) [2021-11-09 08:57:44,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 224.0) internal successors, (2016), 9 states have internal predecessors, (2016), 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) [2021-11-09 08:57:44,679 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 224.0) internal successors, (2016), 9 states have internal predecessors, (2016), 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) [2021-11-09 08:57:44,679 INFO L186 Difference]: Start difference. First operand has 260 places, 235 transitions, 823 flow. Second operand 8 states and 1398 transitions. [2021-11-09 08:57:44,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 242 transitions, 1016 flow [2021-11-09 08:57:44,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 242 transitions, 981 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-11-09 08:57:44,699 INFO L242 Difference]: Finished difference. Result has 261 places, 228 transitions, 754 flow [2021-11-09 08:57:44,700 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=754, PETRI_PLACES=261, PETRI_TRANSITIONS=228} [2021-11-09 08:57:44,700 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 61 predicate places. [2021-11-09 08:57:44,700 INFO L470 AbstractCegarLoop]: Abstraction has has 261 places, 228 transitions, 754 flow [2021-11-09 08:57:44,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 172.57142857142858) internal successors, (1208), 7 states have internal predecessors, (1208), 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) [2021-11-09 08:57:44,701 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:44,702 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:44,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-09 08:57:44,702 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:44,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:44,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1231971173, now seen corresponding path program 2 times [2021-11-09 08:57:44,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:44,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288518649] [2021-11-09 08:57:44,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:44,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:45,008 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-09 08:57:45,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:45,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288518649] [2021-11-09 08:57:45,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288518649] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:57:45,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717144735] [2021-11-09 08:57:45,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:57:45,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:57:45,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:57:45,011 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:57:45,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-09 08:57:45,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-09 08:57:45,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:57:45,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-09 08:57:45,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:57:46,480 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-09 08:57:46,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717144735] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:46,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 08:57:46,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2021-11-09 08:57:46,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315569963] [2021-11-09 08:57:46,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-09 08:57:46,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:46,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 08:57:46,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2021-11-09 08:57:46,487 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 224 [2021-11-09 08:57:46,490 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 228 transitions, 754 flow. Second operand has 12 states, 12 states have (on average 160.5) internal successors, (1926), 12 states have internal predecessors, (1926), 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) [2021-11-09 08:57:46,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:46,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 224 [2021-11-09 08:57:46,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:47,922 INFO L129 PetriNetUnfolder]: 261/4343 cut-off events. [2021-11-09 08:57:47,922 INFO L130 PetriNetUnfolder]: For 1546/1631 co-relation queries the response was YES. [2021-11-09 08:57:48,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6399 conditions, 4343 events. 261/4343 cut-off events. For 1546/1631 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 44189 event pairs, 12 based on Foata normal form. 25/4035 useless extension candidates. Maximal degree in co-relation 6365. Up to 379 conditions per place. [2021-11-09 08:57:48,077 INFO L132 encePairwiseOnDemand]: 209/224 looper letters, 62 selfloop transitions, 14 changer transitions 11/260 dead transitions. [2021-11-09 08:57:48,077 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 260 transitions, 1038 flow [2021-11-09 08:57:48,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-09 08:57:48,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-09 08:57:48,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2276 transitions. [2021-11-09 08:57:48,082 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7257653061224489 [2021-11-09 08:57:48,082 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2276 transitions. [2021-11-09 08:57:48,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2276 transitions. [2021-11-09 08:57:48,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:57:48,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2276 transitions. [2021-11-09 08:57:48,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 162.57142857142858) internal successors, (2276), 14 states have internal predecessors, (2276), 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) [2021-11-09 08:57:48,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 224.0) internal successors, (3360), 15 states have internal predecessors, (3360), 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) [2021-11-09 08:57:48,097 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 224.0) internal successors, (3360), 15 states have internal predecessors, (3360), 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) [2021-11-09 08:57:48,098 INFO L186 Difference]: Start difference. First operand has 261 places, 228 transitions, 754 flow. Second operand 14 states and 2276 transitions. [2021-11-09 08:57:48,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 260 transitions, 1038 flow [2021-11-09 08:57:48,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 260 transitions, 988 flow, removed 12 selfloop flow, removed 11 redundant places. [2021-11-09 08:57:48,113 INFO L242 Difference]: Finished difference. Result has 267 places, 231 transitions, 808 flow [2021-11-09 08:57:48,114 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=808, PETRI_PLACES=267, PETRI_TRANSITIONS=231} [2021-11-09 08:57:48,114 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 67 predicate places. [2021-11-09 08:57:48,115 INFO L470 AbstractCegarLoop]: Abstraction has has 267 places, 231 transitions, 808 flow [2021-11-09 08:57:48,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 160.5) internal successors, (1926), 12 states have internal predecessors, (1926), 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) [2021-11-09 08:57:48,116 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:57:48,116 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:57:48,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-09 08:57:48,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-09 08:57:48,343 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:57:48,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:57:48,344 INFO L85 PathProgramCache]: Analyzing trace with hash -377399410, now seen corresponding path program 1 times [2021-11-09 08:57:48,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:57:48,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316427108] [2021-11-09 08:57:48,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:57:48,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:57:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:57:49,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-09 08:57:49,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:57:49,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316427108] [2021-11-09 08:57:49,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316427108] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:57:49,223 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:57:49,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-11-09 08:57:49,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577316126] [2021-11-09 08:57:49,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-09 08:57:49,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:57:49,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-09 08:57:49,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2021-11-09 08:57:49,231 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 224 [2021-11-09 08:57:49,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 231 transitions, 808 flow. Second operand has 23 states, 23 states have (on average 140.43478260869566) internal successors, (3230), 23 states have internal predecessors, (3230), 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) [2021-11-09 08:57:49,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:57:49,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 224 [2021-11-09 08:57:49,236 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:57:59,646 INFO L129 PetriNetUnfolder]: 15488/48199 cut-off events. [2021-11-09 08:57:59,647 INFO L130 PetriNetUnfolder]: For 11523/11563 co-relation queries the response was YES. [2021-11-09 08:58:00,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82866 conditions, 48199 events. 15488/48199 cut-off events. For 11523/11563 co-relation queries the response was YES. Maximal size of possible extension queue 1518. Compared 643429 event pairs, 9056 based on Foata normal form. 8/44523 useless extension candidates. Maximal degree in co-relation 82826. Up to 13071 conditions per place. [2021-11-09 08:58:00,550 INFO L132 encePairwiseOnDemand]: 195/224 looper letters, 179 selfloop transitions, 38 changer transitions 0/374 dead transitions. [2021-11-09 08:58:00,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 374 transitions, 1605 flow [2021-11-09 08:58:00,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-09 08:58:00,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-11-09 08:58:00,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4074 transitions. [2021-11-09 08:58:00,563 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6495535714285714 [2021-11-09 08:58:00,563 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4074 transitions. [2021-11-09 08:58:00,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4074 transitions. [2021-11-09 08:58:00,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:58:00,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4074 transitions. [2021-11-09 08:58:00,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 145.5) internal successors, (4074), 28 states have internal predecessors, (4074), 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) [2021-11-09 08:58:00,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 224.0) internal successors, (6496), 29 states have internal predecessors, (6496), 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) [2021-11-09 08:58:00,592 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 224.0) internal successors, (6496), 29 states have internal predecessors, (6496), 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) [2021-11-09 08:58:00,592 INFO L186 Difference]: Start difference. First operand has 267 places, 231 transitions, 808 flow. Second operand 28 states and 4074 transitions. [2021-11-09 08:58:00,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 374 transitions, 1605 flow [2021-11-09 08:58:00,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 374 transitions, 1567 flow, removed 14 selfloop flow, removed 11 redundant places. [2021-11-09 08:58:00,666 INFO L242 Difference]: Finished difference. Result has 284 places, 247 transitions, 952 flow [2021-11-09 08:58:00,667 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=952, PETRI_PLACES=284, PETRI_TRANSITIONS=247} [2021-11-09 08:58:00,667 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 84 predicate places. [2021-11-09 08:58:00,667 INFO L470 AbstractCegarLoop]: Abstraction has has 284 places, 247 transitions, 952 flow [2021-11-09 08:58:00,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 140.43478260869566) internal successors, (3230), 23 states have internal predecessors, (3230), 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) [2021-11-09 08:58:00,669 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:58:00,669 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:58:00,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 08:58:00,670 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:58:00,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:00,671 INFO L85 PathProgramCache]: Analyzing trace with hash 252514144, now seen corresponding path program 1 times [2021-11-09 08:58:00,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:00,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503648120] [2021-11-09 08:58:00,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:00,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-09 08:58:01,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:01,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503648120] [2021-11-09 08:58:01,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503648120] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:01,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637499858] [2021-11-09 08:58:01,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:01,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:58:01,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:01,279 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:58:01,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-09 08:58:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:01,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-09 08:58:01,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:58:02,878 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 11 treesize of output 7 [2021-11-09 08:58:03,114 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 17 treesize of output 13 [2021-11-09 08:58:03,299 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 17 treesize of output 13 [2021-11-09 08:58:03,737 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-09 08:58:03,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2021-11-09 08:58:03,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 08:58:03,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637499858] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:58:03,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:58:03,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 24] total 42 [2021-11-09 08:58:03,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802320696] [2021-11-09 08:58:03,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-09 08:58:03,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:03,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-09 08:58:03,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1563, Unknown=0, NotChecked=0, Total=1722 [2021-11-09 08:58:03,867 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 224 [2021-11-09 08:58:03,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 247 transitions, 952 flow. Second operand has 42 states, 42 states have (on average 130.8095238095238) internal successors, (5494), 42 states have internal predecessors, (5494), 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) [2021-11-09 08:58:03,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:58:03,876 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 224 [2021-11-09 08:58:03,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-09 08:58:18,097 INFO L129 PetriNetUnfolder]: 22633/60337 cut-off events. [2021-11-09 08:58:18,097 INFO L130 PetriNetUnfolder]: For 31838/31870 co-relation queries the response was YES. [2021-11-09 08:58:18,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128383 conditions, 60337 events. 22633/60337 cut-off events. For 31838/31870 co-relation queries the response was YES. Maximal size of possible extension queue 1841. Compared 766519 event pairs, 5418 based on Foata normal form. 128/58427 useless extension candidates. Maximal degree in co-relation 128342. Up to 11970 conditions per place. [2021-11-09 08:58:18,909 INFO L132 encePairwiseOnDemand]: 186/224 looper letters, 330 selfloop transitions, 91 changer transitions 0/554 dead transitions. [2021-11-09 08:58:18,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 554 transitions, 2938 flow [2021-11-09 08:58:18,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-09 08:58:18,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-11-09 08:58:18,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 5118 transitions. [2021-11-09 08:58:18,921 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.617519305019305 [2021-11-09 08:58:18,921 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 5118 transitions. [2021-11-09 08:58:18,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 5118 transitions. [2021-11-09 08:58:18,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:58:18,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 5118 transitions. [2021-11-09 08:58:18,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 138.32432432432432) internal successors, (5118), 37 states have internal predecessors, (5118), 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) [2021-11-09 08:58:18,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 224.0) internal successors, (8512), 38 states have internal predecessors, (8512), 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) [2021-11-09 08:58:18,957 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 224.0) internal successors, (8512), 38 states have internal predecessors, (8512), 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) [2021-11-09 08:58:18,957 INFO L186 Difference]: Start difference. First operand has 284 places, 247 transitions, 952 flow. Second operand 37 states and 5118 transitions. [2021-11-09 08:58:18,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 554 transitions, 2938 flow [2021-11-09 08:58:19,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 554 transitions, 2899 flow, removed 2 selfloop flow, removed 15 redundant places. [2021-11-09 08:58:19,497 INFO L242 Difference]: Finished difference. Result has 321 places, 310 transitions, 1583 flow [2021-11-09 08:58:19,499 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=1583, PETRI_PLACES=321, PETRI_TRANSITIONS=310} [2021-11-09 08:58:19,499 INFO L334 CegarLoopForPetriNet]: 200 programPoint places, 121 predicate places. [2021-11-09 08:58:19,499 INFO L470 AbstractCegarLoop]: Abstraction has has 321 places, 310 transitions, 1583 flow [2021-11-09 08:58:19,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 130.8095238095238) internal successors, (5494), 42 states have internal predecessors, (5494), 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) [2021-11-09 08:58:19,501 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:58:19,501 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:58:19,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-09 08:58:19,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28701367-a9cc-4691-b636-c870744927b2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-09 08:58:19,707 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-09 08:58:19,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:19,708 INFO L85 PathProgramCache]: Analyzing trace with hash 957617738, now seen corresponding path program 2 times [2021-11-09 08:58:19,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:19,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639210208] [2021-11-09 08:58:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:19,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:20,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-09 08:58:20,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:20,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639210208] [2021-11-09 08:58:20,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639210208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:58:20,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:58:20,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-09 08:58:20,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039238980] [2021-11-09 08:58:20,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-09 08:58:20,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:20,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-09 08:58:20,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:58:20,297 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 224 [2021-11-09 08:58:20,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 310 transitions, 1583 flow. Second operand has 20 states, 20 states have (on average 149.5) internal successors, (2990), 20 states have internal predecessors, (2990), 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) [2021-11-09 08:58:20,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-09 08:58:20,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 224 [2021-11-09 08:58:20,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand