/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-wmm/rfi002_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:28:03,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:28:03,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:28:03,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:28:03,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:28:03,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:28:03,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:28:03,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:28:03,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:28:03,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:28:03,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:28:03,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:28:03,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:28:03,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:28:03,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:28:03,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:28:03,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:28:03,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:28:03,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:28:03,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:28:03,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:28:03,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:28:03,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:28:03,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:28:03,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 18:28:03,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 18:28:03,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 18:28:03,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 18:28:03,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 18:28:03,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 18:28:03,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:28:03,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:28:03,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:28:03,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:28:03,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:28:03,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:28:03,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:28:03,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:28:03,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:28:03,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:28:03,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:28:03,854 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 18:28:03,876 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:28:03,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:28:03,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:28:03,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:28:03,878 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:28:03,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:28:03,878 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:28:03,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:28:03,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:28:03,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:28:03,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:28:03,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:28:03,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:28:03,879 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:28:03,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:28:03,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:28:03,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:28:03,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:28:03,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:28:03,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:28:03,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:28:03,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:28:03,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:28:03,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:28:03,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:28:03,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:28:03,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:28:03,882 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:28:03,882 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:28:03,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:28:04,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:28:04,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:28:04,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:28:04,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:28:04,214 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:28:04,215 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_rmo.opt.i [2020-10-11 18:28:04,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c261a0475/f2d011e38e7942068f268fbeab060cab/FLAG419dc09c3 [2020-10-11 18:28:04,853 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:28:04,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_rmo.opt.i [2020-10-11 18:28:04,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c261a0475/f2d011e38e7942068f268fbeab060cab/FLAG419dc09c3 [2020-10-11 18:28:05,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c261a0475/f2d011e38e7942068f268fbeab060cab [2020-10-11 18:28:05,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:28:05,115 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:28:05,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:28:05,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:28:05,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:28:05,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:28:05" (1/1) ... [2020-10-11 18:28:05,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3c5560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05, skipping insertion in model container [2020-10-11 18:28:05,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:28:05" (1/1) ... [2020-10-11 18:28:05,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:28:05,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:28:05,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:28:05,767 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:28:05,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:28:05,927 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:28:05,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05 WrapperNode [2020-10-11 18:28:05,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:28:05,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:28:05,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:28:05,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:28:05,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05" (1/1) ... [2020-10-11 18:28:05,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05" (1/1) ... [2020-10-11 18:28:05,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:28:05,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:28:05,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:28:05,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:28:06,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05" (1/1) ... [2020-10-11 18:28:06,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05" (1/1) ... [2020-10-11 18:28:06,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05" (1/1) ... [2020-10-11 18:28:06,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05" (1/1) ... [2020-10-11 18:28:06,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05" (1/1) ... [2020-10-11 18:28:06,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05" (1/1) ... [2020-10-11 18:28:06,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05" (1/1) ... [2020-10-11 18:28:06,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:28:06,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:28:06,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:28:06,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:28:06,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:28:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:28:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:28:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:28:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:28:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:28:06,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:28:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:28:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:28:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:28:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:28:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:28:06,161 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 18:28:09,720 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:28:09,721 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-11 18:28:09,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:28:09 BoogieIcfgContainer [2020-10-11 18:28:09,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:28:09,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:28:09,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:28:09,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:28:09,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:28:05" (1/3) ... [2020-10-11 18:28:09,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b922ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:28:09, skipping insertion in model container [2020-10-11 18:28:09,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:05" (2/3) ... [2020-10-11 18:28:09,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b922ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:28:09, skipping insertion in model container [2020-10-11 18:28:09,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:28:09" (3/3) ... [2020-10-11 18:28:09,734 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi002_rmo.opt.i [2020-10-11 18:28:09,747 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:28:09,756 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-11 18:28:09,758 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:28:09,862 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,863 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,863 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,864 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,864 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,864 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,866 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,866 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,867 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,867 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,867 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,871 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,871 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,871 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,871 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,872 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,872 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,872 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,872 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,878 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,878 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,878 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,878 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,880 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,880 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,881 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,883 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,883 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,883 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,884 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,884 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,884 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,884 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,886 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,886 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,886 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,886 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,888 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,888 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,888 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,888 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,888 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,889 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,889 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,889 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,889 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,890 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,890 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,890 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,890 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,891 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,891 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,891 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,891 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,896 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,896 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,901 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,904 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,904 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,904 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,904 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,905 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,905 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,905 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,906 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,906 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,906 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,907 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,907 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,907 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,907 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,914 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,917 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,918 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:09,947 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 18:28:09,976 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:28:09,977 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:28:09,977 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:28:09,977 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:28:09,977 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:28:09,977 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:28:09,978 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:28:09,978 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:28:09,993 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 170 flow [2020-10-11 18:28:10,048 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-11 18:28:10,048 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:28:10,053 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2020-10-11 18:28:10,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 80 transitions, 170 flow [2020-10-11 18:28:10,060 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 78 transitions, 162 flow [2020-10-11 18:28:10,077 INFO L129 PetriNetUnfolder]: 0/44 cut-off events. [2020-10-11 18:28:10,077 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:28:10,077 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:10,078 INFO L255 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] [2020-10-11 18:28:10,078 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:10,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:10,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1722193573, now seen corresponding path program 1 times [2020-10-11 18:28:10,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:10,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760065851] [2020-10-11 18:28:10,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:10,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760065851] [2020-10-11 18:28:10,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:10,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 18:28:10,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205239542] [2020-10-11 18:28:10,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 18:28:10,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:10,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 18:28:10,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 18:28:10,659 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 80 [2020-10-11 18:28:10,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 78 transitions, 162 flow. Second operand 3 states. [2020-10-11 18:28:10,662 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:10,662 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 80 [2020-10-11 18:28:10,663 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:10,692 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2020-10-11 18:28:10,692 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:28:10,692 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 0/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 4/77 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-11 18:28:10,694 INFO L132 encePairwiseOnDemand]: 75/80 looper letters, 0 selfloop transitions, 2 changer transitions 9/75 dead transitions. [2020-10-11 18:28:10,694 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 75 transitions, 160 flow [2020-10-11 18:28:10,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 18:28:10,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 18:28:10,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2020-10-11 18:28:10,711 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9666666666666667 [2020-10-11 18:28:10,712 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2020-10-11 18:28:10,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2020-10-11 18:28:10,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:10,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2020-10-11 18:28:10,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 18:28:10,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 18:28:10,728 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 18:28:10,730 INFO L185 Difference]: Start difference. First operand has 83 places, 78 transitions, 162 flow. Second operand 3 states and 232 transitions. [2020-10-11 18:28:10,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 75 transitions, 160 flow [2020-10-11 18:28:10,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 75 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 18:28:10,741 INFO L241 Difference]: Finished difference. Result has 82 places, 66 transitions, 140 flow [2020-10-11 18:28:10,744 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=82, PETRI_TRANSITIONS=66} [2020-10-11 18:28:10,745 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, -1 predicate places. [2020-10-11 18:28:10,745 INFO L481 AbstractCegarLoop]: Abstraction has has 82 places, 66 transitions, 140 flow [2020-10-11 18:28:10,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 18:28:10,745 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:10,745 INFO L255 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] [2020-10-11 18:28:10,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:28:10,746 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:10,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:10,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1793725615, now seen corresponding path program 1 times [2020-10-11 18:28:10,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:10,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778802677] [2020-10-11 18:28:10,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:11,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:11,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778802677] [2020-10-11 18:28:11,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:11,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:28:11,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948310434] [2020-10-11 18:28:11,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:28:11,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:11,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:28:11,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:28:11,169 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 80 [2020-10-11 18:28:11,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 66 transitions, 140 flow. Second operand 6 states. [2020-10-11 18:28:11,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:11,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 80 [2020-10-11 18:28:11,171 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:11,309 INFO L129 PetriNetUnfolder]: 3/92 cut-off events. [2020-10-11 18:28:11,309 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:28:11,310 INFO L80 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 92 events. 3/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 144 event pairs, 0 based on Foata normal form. 2/94 useless extension candidates. Maximal degree in co-relation 80. Up to 7 conditions per place. [2020-10-11 18:28:11,311 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 6 selfloop transitions, 2 changer transitions 10/76 dead transitions. [2020-10-11 18:28:11,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 76 transitions, 196 flow [2020-10-11 18:28:11,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:28:11,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:28:11,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 650 transitions. [2020-10-11 18:28:11,318 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2020-10-11 18:28:11,318 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 650 transitions. [2020-10-11 18:28:11,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 650 transitions. [2020-10-11 18:28:11,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:11,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 650 transitions. [2020-10-11 18:28:11,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:28:11,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:28:11,327 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:28:11,327 INFO L185 Difference]: Start difference. First operand has 82 places, 66 transitions, 140 flow. Second operand 9 states and 650 transitions. [2020-10-11 18:28:11,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 76 transitions, 196 flow [2020-10-11 18:28:11,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 18:28:11,332 INFO L241 Difference]: Finished difference. Result has 86 places, 66 transitions, 156 flow [2020-10-11 18:28:11,332 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=156, PETRI_PLACES=86, PETRI_TRANSITIONS=66} [2020-10-11 18:28:11,333 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 3 predicate places. [2020-10-11 18:28:11,333 INFO L481 AbstractCegarLoop]: Abstraction has has 86 places, 66 transitions, 156 flow [2020-10-11 18:28:11,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:28:11,333 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:11,333 INFO L255 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] [2020-10-11 18:28:11,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:28:11,334 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:11,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:11,334 INFO L82 PathProgramCache]: Analyzing trace with hash -781656204, now seen corresponding path program 1 times [2020-10-11 18:28:11,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:11,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188372969] [2020-10-11 18:28:11,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:11,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:11,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188372969] [2020-10-11 18:28:11,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:11,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-11 18:28:11,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309595897] [2020-10-11 18:28:11,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-11 18:28:11,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:11,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-11 18:28:11,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-11 18:28:12,617 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 80 [2020-10-11 18:28:12,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 66 transitions, 156 flow. Second operand 11 states. [2020-10-11 18:28:12,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:12,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 80 [2020-10-11 18:28:12,618 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:13,068 INFO L129 PetriNetUnfolder]: 217/518 cut-off events. [2020-10-11 18:28:13,068 INFO L130 PetriNetUnfolder]: For 138/138 co-relation queries the response was YES. [2020-10-11 18:28:13,072 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 518 events. 217/518 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2425 event pairs, 128 based on Foata normal form. 15/522 useless extension candidates. Maximal degree in co-relation 1047. Up to 250 conditions per place. [2020-10-11 18:28:13,075 INFO L132 encePairwiseOnDemand]: 68/80 looper letters, 17 selfloop transitions, 9 changer transitions 31/103 dead transitions. [2020-10-11 18:28:13,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 103 transitions, 362 flow [2020-10-11 18:28:13,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-11 18:28:13,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-11 18:28:13,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 857 transitions. [2020-10-11 18:28:13,080 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7651785714285714 [2020-10-11 18:28:13,080 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 857 transitions. [2020-10-11 18:28:13,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 857 transitions. [2020-10-11 18:28:13,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:13,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 857 transitions. [2020-10-11 18:28:13,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-11 18:28:13,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-11 18:28:13,085 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-11 18:28:13,086 INFO L185 Difference]: Start difference. First operand has 86 places, 66 transitions, 156 flow. Second operand 14 states and 857 transitions. [2020-10-11 18:28:13,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 103 transitions, 362 flow [2020-10-11 18:28:13,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 103 transitions, 330 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:28:13,093 INFO L241 Difference]: Finished difference. Result has 93 places, 70 transitions, 198 flow [2020-10-11 18:28:13,094 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=198, PETRI_PLACES=93, PETRI_TRANSITIONS=70} [2020-10-11 18:28:13,094 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 10 predicate places. [2020-10-11 18:28:13,094 INFO L481 AbstractCegarLoop]: Abstraction has has 93 places, 70 transitions, 198 flow [2020-10-11 18:28:13,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-11 18:28:13,094 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:13,095 INFO L255 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] [2020-10-11 18:28:13,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:28:13,095 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:13,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:13,095 INFO L82 PathProgramCache]: Analyzing trace with hash -351712153, now seen corresponding path program 1 times [2020-10-11 18:28:13,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:13,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266488876] [2020-10-11 18:28:13,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:13,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:13,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266488876] [2020-10-11 18:28:13,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:13,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:28:13,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561228491] [2020-10-11 18:28:13,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:28:13,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:13,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:28:13,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:28:13,469 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 80 [2020-10-11 18:28:13,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 70 transitions, 198 flow. Second operand 6 states. [2020-10-11 18:28:13,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:13,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 80 [2020-10-11 18:28:13,470 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:13,612 INFO L129 PetriNetUnfolder]: 16/143 cut-off events. [2020-10-11 18:28:13,612 INFO L130 PetriNetUnfolder]: For 105/110 co-relation queries the response was YES. [2020-10-11 18:28:13,613 INFO L80 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 143 events. 16/143 cut-off events. For 105/110 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 423 event pairs, 8 based on Foata normal form. 5/144 useless extension candidates. Maximal degree in co-relation 265. Up to 17 conditions per place. [2020-10-11 18:28:13,614 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 7 selfloop transitions, 5 changer transitions 6/80 dead transitions. [2020-10-11 18:28:13,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 80 transitions, 274 flow [2020-10-11 18:28:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:28:13,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:28:13,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 650 transitions. [2020-10-11 18:28:13,617 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2020-10-11 18:28:13,617 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 650 transitions. [2020-10-11 18:28:13,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 650 transitions. [2020-10-11 18:28:13,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:13,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 650 transitions. [2020-10-11 18:28:13,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:28:13,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:28:13,621 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:28:13,622 INFO L185 Difference]: Start difference. First operand has 93 places, 70 transitions, 198 flow. Second operand 9 states and 650 transitions. [2020-10-11 18:28:13,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 80 transitions, 274 flow [2020-10-11 18:28:13,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 80 transitions, 252 flow, removed 7 selfloop flow, removed 7 redundant places. [2020-10-11 18:28:13,626 INFO L241 Difference]: Finished difference. Result has 95 places, 73 transitions, 230 flow [2020-10-11 18:28:13,626 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=230, PETRI_PLACES=95, PETRI_TRANSITIONS=73} [2020-10-11 18:28:13,626 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 12 predicate places. [2020-10-11 18:28:13,626 INFO L481 AbstractCegarLoop]: Abstraction has has 95 places, 73 transitions, 230 flow [2020-10-11 18:28:13,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:28:13,627 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:13,627 INFO L255 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] [2020-10-11 18:28:13,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:28:13,627 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:13,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:13,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1155064114, now seen corresponding path program 1 times [2020-10-11 18:28:13,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:13,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159937479] [2020-10-11 18:28:13,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:14,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:14,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159937479] [2020-10-11 18:28:14,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:14,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-11 18:28:14,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46198308] [2020-10-11 18:28:14,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 18:28:14,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:14,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 18:28:14,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-10-11 18:28:18,153 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 80 [2020-10-11 18:28:18,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 73 transitions, 230 flow. Second operand 16 states. [2020-10-11 18:28:18,155 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:18,155 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 80 [2020-10-11 18:28:18,155 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:18,872 INFO L129 PetriNetUnfolder]: 176/457 cut-off events. [2020-10-11 18:28:18,872 INFO L130 PetriNetUnfolder]: For 769/778 co-relation queries the response was YES. [2020-10-11 18:28:18,876 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1325 conditions, 457 events. 176/457 cut-off events. For 769/778 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2133 event pairs, 31 based on Foata normal form. 8/454 useless extension candidates. Maximal degree in co-relation 1264. Up to 207 conditions per place. [2020-10-11 18:28:18,879 INFO L132 encePairwiseOnDemand]: 67/80 looper letters, 25 selfloop transitions, 10 changer transitions 33/113 dead transitions. [2020-10-11 18:28:18,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 113 transitions, 546 flow [2020-10-11 18:28:18,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-11 18:28:18,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-11 18:28:18,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 956 transitions. [2020-10-11 18:28:18,884 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.746875 [2020-10-11 18:28:18,884 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 956 transitions. [2020-10-11 18:28:18,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 956 transitions. [2020-10-11 18:28:18,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:18,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 956 transitions. [2020-10-11 18:28:18,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 17 states. [2020-10-11 18:28:18,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 17 states. [2020-10-11 18:28:18,889 INFO L81 ComplementDD]: Finished complementDD. Result 17 states. [2020-10-11 18:28:18,889 INFO L185 Difference]: Start difference. First operand has 95 places, 73 transitions, 230 flow. Second operand 16 states and 956 transitions. [2020-10-11 18:28:18,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 113 transitions, 546 flow [2020-10-11 18:28:18,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 113 transitions, 528 flow, removed 7 selfloop flow, removed 4 redundant places. [2020-10-11 18:28:18,897 INFO L241 Difference]: Finished difference. Result has 110 places, 71 transitions, 250 flow [2020-10-11 18:28:18,898 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=250, PETRI_PLACES=110, PETRI_TRANSITIONS=71} [2020-10-11 18:28:18,898 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 27 predicate places. [2020-10-11 18:28:18,898 INFO L481 AbstractCegarLoop]: Abstraction has has 110 places, 71 transitions, 250 flow [2020-10-11 18:28:18,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 18:28:18,899 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:18,899 INFO L255 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] [2020-10-11 18:28:18,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:28:18,900 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:18,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:18,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1453788938, now seen corresponding path program 2 times [2020-10-11 18:28:18,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:18,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838847977] [2020-10-11 18:28:18,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:19,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:19,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838847977] [2020-10-11 18:28:19,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:19,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-11 18:28:19,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222816547] [2020-10-11 18:28:19,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-11 18:28:19,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:19,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-11 18:28:19,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-11 18:28:21,042 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 80 [2020-10-11 18:28:21,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 71 transitions, 250 flow. Second operand 11 states. [2020-10-11 18:28:21,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:21,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 80 [2020-10-11 18:28:21,044 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:21,967 INFO L129 PetriNetUnfolder]: 118/422 cut-off events. [2020-10-11 18:28:21,968 INFO L130 PetriNetUnfolder]: For 1206/1316 co-relation queries the response was YES. [2020-10-11 18:28:21,970 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1179 conditions, 422 events. 118/422 cut-off events. For 1206/1316 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2229 event pairs, 22 based on Foata normal form. 19/439 useless extension candidates. Maximal degree in co-relation 1111. Up to 70 conditions per place. [2020-10-11 18:28:21,972 INFO L132 encePairwiseOnDemand]: 67/80 looper letters, 26 selfloop transitions, 17 changer transitions 44/136 dead transitions. [2020-10-11 18:28:21,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 136 transitions, 809 flow [2020-10-11 18:28:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-11 18:28:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-11 18:28:21,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1348 transitions. [2020-10-11 18:28:21,978 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8023809523809524 [2020-10-11 18:28:21,978 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1348 transitions. [2020-10-11 18:28:21,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1348 transitions. [2020-10-11 18:28:21,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:21,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1348 transitions. [2020-10-11 18:28:21,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 22 states. [2020-10-11 18:28:21,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 22 states. [2020-10-11 18:28:21,986 INFO L81 ComplementDD]: Finished complementDD. Result 22 states. [2020-10-11 18:28:21,987 INFO L185 Difference]: Start difference. First operand has 110 places, 71 transitions, 250 flow. Second operand 21 states and 1348 transitions. [2020-10-11 18:28:21,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 136 transitions, 809 flow [2020-10-11 18:28:21,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 136 transitions, 629 flow, removed 78 selfloop flow, removed 18 redundant places. [2020-10-11 18:28:21,995 INFO L241 Difference]: Finished difference. Result has 118 places, 83 transitions, 346 flow [2020-10-11 18:28:21,995 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=346, PETRI_PLACES=118, PETRI_TRANSITIONS=83} [2020-10-11 18:28:21,995 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 35 predicate places. [2020-10-11 18:28:21,996 INFO L481 AbstractCegarLoop]: Abstraction has has 118 places, 83 transitions, 346 flow [2020-10-11 18:28:21,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-11 18:28:21,996 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:21,996 INFO L255 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] [2020-10-11 18:28:21,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 18:28:21,996 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:21,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:21,997 INFO L82 PathProgramCache]: Analyzing trace with hash 723475595, now seen corresponding path program 1 times [2020-10-11 18:28:21,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:21,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190131081] [2020-10-11 18:28:21,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:22,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:22,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190131081] [2020-10-11 18:28:22,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:22,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-11 18:28:22,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459623294] [2020-10-11 18:28:22,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-11 18:28:22,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:22,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-11 18:28:22,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-10-11 18:28:25,204 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 80 [2020-10-11 18:28:25,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 83 transitions, 346 flow. Second operand 14 states. [2020-10-11 18:28:25,206 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:25,206 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 80 [2020-10-11 18:28:25,206 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:25,794 INFO L129 PetriNetUnfolder]: 155/466 cut-off events. [2020-10-11 18:28:25,794 INFO L130 PetriNetUnfolder]: For 2101/2116 co-relation queries the response was YES. [2020-10-11 18:28:25,797 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 466 events. 155/466 cut-off events. For 2101/2116 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2511 event pairs, 29 based on Foata normal form. 11/465 useless extension candidates. Maximal degree in co-relation 1659. Up to 232 conditions per place. [2020-10-11 18:28:25,801 INFO L132 encePairwiseOnDemand]: 64/80 looper letters, 35 selfloop transitions, 21 changer transitions 19/120 dead transitions. [2020-10-11 18:28:25,801 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 120 transitions, 817 flow [2020-10-11 18:28:25,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-11 18:28:25,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-11 18:28:25,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 959 transitions. [2020-10-11 18:28:25,805 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.74921875 [2020-10-11 18:28:25,806 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 959 transitions. [2020-10-11 18:28:25,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 959 transitions. [2020-10-11 18:28:25,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:25,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 959 transitions. [2020-10-11 18:28:25,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 17 states. [2020-10-11 18:28:25,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 17 states. [2020-10-11 18:28:25,812 INFO L81 ComplementDD]: Finished complementDD. Result 17 states. [2020-10-11 18:28:25,812 INFO L185 Difference]: Start difference. First operand has 118 places, 83 transitions, 346 flow. Second operand 16 states and 959 transitions. [2020-10-11 18:28:25,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 120 transitions, 817 flow [2020-10-11 18:28:25,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 120 transitions, 682 flow, removed 66 selfloop flow, removed 11 redundant places. [2020-10-11 18:28:25,820 INFO L241 Difference]: Finished difference. Result has 119 places, 95 transitions, 476 flow [2020-10-11 18:28:25,821 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=476, PETRI_PLACES=119, PETRI_TRANSITIONS=95} [2020-10-11 18:28:25,821 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 36 predicate places. [2020-10-11 18:28:25,821 INFO L481 AbstractCegarLoop]: Abstraction has has 119 places, 95 transitions, 476 flow [2020-10-11 18:28:25,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-11 18:28:25,821 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:25,821 INFO L255 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] [2020-10-11 18:28:25,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 18:28:25,822 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:25,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:25,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1033659625, now seen corresponding path program 2 times [2020-10-11 18:28:25,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:25,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602681169] [2020-10-11 18:28:25,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:26,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:26,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602681169] [2020-10-11 18:28:26,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:26,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-11 18:28:26,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250489346] [2020-10-11 18:28:26,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-11 18:28:26,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:26,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-11 18:28:26,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-11 18:28:27,768 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 80 [2020-10-11 18:28:27,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 95 transitions, 476 flow. Second operand 10 states. [2020-10-11 18:28:27,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:27,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 80 [2020-10-11 18:28:27,770 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:28,378 INFO L129 PetriNetUnfolder]: 107/407 cut-off events. [2020-10-11 18:28:28,378 INFO L130 PetriNetUnfolder]: For 2679/2903 co-relation queries the response was YES. [2020-10-11 18:28:28,382 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1736 conditions, 407 events. 107/407 cut-off events. For 2679/2903 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2092 event pairs, 9 based on Foata normal form. 21/425 useless extension candidates. Maximal degree in co-relation 1663. Up to 140 conditions per place. [2020-10-11 18:28:28,386 INFO L132 encePairwiseOnDemand]: 67/80 looper letters, 34 selfloop transitions, 26 changer transitions 25/133 dead transitions. [2020-10-11 18:28:28,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 133 transitions, 1066 flow [2020-10-11 18:28:28,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:28:28,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:28:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 750 transitions. [2020-10-11 18:28:28,391 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.78125 [2020-10-11 18:28:28,392 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 750 transitions. [2020-10-11 18:28:28,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 750 transitions. [2020-10-11 18:28:28,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:28,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 750 transitions. [2020-10-11 18:28:28,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:28:28,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:28:28,398 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:28:28,398 INFO L185 Difference]: Start difference. First operand has 119 places, 95 transitions, 476 flow. Second operand 12 states and 750 transitions. [2020-10-11 18:28:28,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 133 transitions, 1066 flow [2020-10-11 18:28:28,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 133 transitions, 1008 flow, removed 24 selfloop flow, removed 8 redundant places. [2020-10-11 18:28:28,408 INFO L241 Difference]: Finished difference. Result has 124 places, 102 transitions, 646 flow [2020-10-11 18:28:28,409 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=646, PETRI_PLACES=124, PETRI_TRANSITIONS=102} [2020-10-11 18:28:28,409 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 41 predicate places. [2020-10-11 18:28:28,409 INFO L481 AbstractCegarLoop]: Abstraction has has 124 places, 102 transitions, 646 flow [2020-10-11 18:28:28,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-11 18:28:28,409 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:28,410 INFO L255 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] [2020-10-11 18:28:28,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 18:28:28,410 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:28,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:28,410 INFO L82 PathProgramCache]: Analyzing trace with hash -904153608, now seen corresponding path program 1 times [2020-10-11 18:28:28,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:28,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886835838] [2020-10-11 18:28:28,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:28,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:28,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886835838] [2020-10-11 18:28:28,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:28,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-11 18:28:28,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728894080] [2020-10-11 18:28:29,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-11 18:28:29,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:29,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-11 18:28:29,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-10-11 18:28:32,886 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 80 [2020-10-11 18:28:32,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 102 transitions, 646 flow. Second operand 14 states. [2020-10-11 18:28:32,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:32,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 80 [2020-10-11 18:28:32,888 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:33,630 INFO L129 PetriNetUnfolder]: 78/353 cut-off events. [2020-10-11 18:28:33,630 INFO L130 PetriNetUnfolder]: For 2900/3151 co-relation queries the response was YES. [2020-10-11 18:28:33,633 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1673 conditions, 353 events. 78/353 cut-off events. For 2900/3151 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1762 event pairs, 9 based on Foata normal form. 15/365 useless extension candidates. Maximal degree in co-relation 1595. Up to 140 conditions per place. [2020-10-11 18:28:33,635 INFO L132 encePairwiseOnDemand]: 67/80 looper letters, 43 selfloop transitions, 19 changer transitions 17/126 dead transitions. [2020-10-11 18:28:33,636 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 126 transitions, 1088 flow [2020-10-11 18:28:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-11 18:28:33,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-11 18:28:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 904 transitions. [2020-10-11 18:28:33,640 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7533333333333333 [2020-10-11 18:28:33,641 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 904 transitions. [2020-10-11 18:28:33,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 904 transitions. [2020-10-11 18:28:33,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:33,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 904 transitions. [2020-10-11 18:28:33,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-11 18:28:33,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 16 states. [2020-10-11 18:28:33,647 INFO L81 ComplementDD]: Finished complementDD. Result 16 states. [2020-10-11 18:28:33,647 INFO L185 Difference]: Start difference. First operand has 124 places, 102 transitions, 646 flow. Second operand 15 states and 904 transitions. [2020-10-11 18:28:33,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 126 transitions, 1088 flow [2020-10-11 18:28:33,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 126 transitions, 996 flow, removed 43 selfloop flow, removed 9 redundant places. [2020-10-11 18:28:33,660 INFO L241 Difference]: Finished difference. Result has 131 places, 106 transitions, 703 flow [2020-10-11 18:28:33,660 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=703, PETRI_PLACES=131, PETRI_TRANSITIONS=106} [2020-10-11 18:28:33,661 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 48 predicate places. [2020-10-11 18:28:33,661 INFO L481 AbstractCegarLoop]: Abstraction has has 131 places, 106 transitions, 703 flow [2020-10-11 18:28:33,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-11 18:28:33,661 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:33,661 INFO L255 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] [2020-10-11 18:28:33,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 18:28:33,662 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:33,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:33,662 INFO L82 PathProgramCache]: Analyzing trace with hash -584830633, now seen corresponding path program 1 times [2020-10-11 18:28:33,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:33,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321187444] [2020-10-11 18:28:33,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:33,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:33,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321187444] [2020-10-11 18:28:33,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:33,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:28:33,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589962714] [2020-10-11 18:28:33,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:28:33,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:33,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:28:33,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:28:34,423 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 80 [2020-10-11 18:28:34,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 106 transitions, 703 flow. Second operand 7 states. [2020-10-11 18:28:34,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:34,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 80 [2020-10-11 18:28:34,424 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:34,734 INFO L129 PetriNetUnfolder]: 166/579 cut-off events. [2020-10-11 18:28:34,735 INFO L130 PetriNetUnfolder]: For 3536/3588 co-relation queries the response was YES. [2020-10-11 18:28:34,738 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2621 conditions, 579 events. 166/579 cut-off events. For 3536/3588 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 3884 event pairs, 28 based on Foata normal form. 26/593 useless extension candidates. Maximal degree in co-relation 2542. Up to 203 conditions per place. [2020-10-11 18:28:34,741 INFO L132 encePairwiseOnDemand]: 70/80 looper letters, 51 selfloop transitions, 8 changer transitions 43/153 dead transitions. [2020-10-11 18:28:34,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 153 transitions, 1451 flow [2020-10-11 18:28:34,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:28:34,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:28:34,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 465 transitions. [2020-10-11 18:28:34,744 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8303571428571429 [2020-10-11 18:28:34,744 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 465 transitions. [2020-10-11 18:28:34,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 465 transitions. [2020-10-11 18:28:34,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:34,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 465 transitions. [2020-10-11 18:28:34,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:28:34,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:28:34,747 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:28:34,747 INFO L185 Difference]: Start difference. First operand has 131 places, 106 transitions, 703 flow. Second operand 7 states and 465 transitions. [2020-10-11 18:28:34,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 153 transitions, 1451 flow [2020-10-11 18:28:34,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 153 transitions, 1333 flow, removed 54 selfloop flow, removed 15 redundant places. [2020-10-11 18:28:34,765 INFO L241 Difference]: Finished difference. Result has 121 places, 110 transitions, 700 flow [2020-10-11 18:28:34,765 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=700, PETRI_PLACES=121, PETRI_TRANSITIONS=110} [2020-10-11 18:28:34,766 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 38 predicate places. [2020-10-11 18:28:34,766 INFO L481 AbstractCegarLoop]: Abstraction has has 121 places, 110 transitions, 700 flow [2020-10-11 18:28:34,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:28:34,766 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:34,766 INFO L255 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] [2020-10-11 18:28:34,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 18:28:34,767 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:34,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:34,767 INFO L82 PathProgramCache]: Analyzing trace with hash 430176403, now seen corresponding path program 2 times [2020-10-11 18:28:34,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:34,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318128839] [2020-10-11 18:28:34,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:35,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:35,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318128839] [2020-10-11 18:28:35,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:35,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-11 18:28:35,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484249817] [2020-10-11 18:28:35,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-11 18:28:35,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:35,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-11 18:28:35,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-11 18:28:36,070 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 80 [2020-10-11 18:28:36,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 110 transitions, 700 flow. Second operand 9 states. [2020-10-11 18:28:36,071 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:36,071 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 80 [2020-10-11 18:28:36,071 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:36,473 INFO L129 PetriNetUnfolder]: 132/526 cut-off events. [2020-10-11 18:28:36,473 INFO L130 PetriNetUnfolder]: For 3091/3317 co-relation queries the response was YES. [2020-10-11 18:28:36,478 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2313 conditions, 526 events. 132/526 cut-off events. For 3091/3317 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3344 event pairs, 15 based on Foata normal form. 37/551 useless extension candidates. Maximal degree in co-relation 2242. Up to 154 conditions per place. [2020-10-11 18:28:36,481 INFO L132 encePairwiseOnDemand]: 68/80 looper letters, 40 selfloop transitions, 18 changer transitions 59/164 dead transitions. [2020-10-11 18:28:36,481 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 164 transitions, 1547 flow [2020-10-11 18:28:36,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:28:36,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:28:36,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 637 transitions. [2020-10-11 18:28:36,483 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.79625 [2020-10-11 18:28:36,484 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 637 transitions. [2020-10-11 18:28:36,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 637 transitions. [2020-10-11 18:28:36,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:36,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 637 transitions. [2020-10-11 18:28:36,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:28:36,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:28:36,490 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:28:36,490 INFO L185 Difference]: Start difference. First operand has 121 places, 110 transitions, 700 flow. Second operand 10 states and 637 transitions. [2020-10-11 18:28:36,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 164 transitions, 1547 flow [2020-10-11 18:28:36,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 164 transitions, 1457 flow, removed 39 selfloop flow, removed 8 redundant places. [2020-10-11 18:28:36,503 INFO L241 Difference]: Finished difference. Result has 124 places, 103 transitions, 684 flow [2020-10-11 18:28:36,504 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=684, PETRI_PLACES=124, PETRI_TRANSITIONS=103} [2020-10-11 18:28:36,504 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 41 predicate places. [2020-10-11 18:28:36,504 INFO L481 AbstractCegarLoop]: Abstraction has has 124 places, 103 transitions, 684 flow [2020-10-11 18:28:36,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-11 18:28:36,505 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:36,505 INFO L255 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] [2020-10-11 18:28:36,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 18:28:36,505 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:36,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:36,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1577906633, now seen corresponding path program 1 times [2020-10-11 18:28:36,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:36,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666418612] [2020-10-11 18:28:36,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:36,897 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 28 [2020-10-11 18:28:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:37,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666418612] [2020-10-11 18:28:37,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:37,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-11 18:28:37,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997907034] [2020-10-11 18:28:37,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-11 18:28:37,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:37,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-11 18:28:37,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-10-11 18:28:42,021 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 80 [2020-10-11 18:28:42,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 103 transitions, 684 flow. Second operand 14 states. [2020-10-11 18:28:42,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:42,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 80 [2020-10-11 18:28:42,023 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:42,492 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-10-11 18:28:42,753 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-11 18:28:42,843 INFO L129 PetriNetUnfolder]: 53/317 cut-off events. [2020-10-11 18:28:42,843 INFO L130 PetriNetUnfolder]: For 1597/1716 co-relation queries the response was YES. [2020-10-11 18:28:42,845 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1288 conditions, 317 events. 53/317 cut-off events. For 1597/1716 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1618 event pairs, 4 based on Foata normal form. 12/318 useless extension candidates. Maximal degree in co-relation 1221. Up to 95 conditions per place. [2020-10-11 18:28:42,847 INFO L132 encePairwiseOnDemand]: 68/80 looper letters, 39 selfloop transitions, 19 changer transitions 14/121 dead transitions. [2020-10-11 18:28:42,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 121 transitions, 1004 flow [2020-10-11 18:28:42,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-11 18:28:42,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-11 18:28:42,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 894 transitions. [2020-10-11 18:28:42,855 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.745 [2020-10-11 18:28:42,855 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 894 transitions. [2020-10-11 18:28:42,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 894 transitions. [2020-10-11 18:28:42,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:42,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 894 transitions. [2020-10-11 18:28:42,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-11 18:28:42,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 16 states. [2020-10-11 18:28:42,859 INFO L81 ComplementDD]: Finished complementDD. Result 16 states. [2020-10-11 18:28:42,860 INFO L185 Difference]: Start difference. First operand has 124 places, 103 transitions, 684 flow. Second operand 15 states and 894 transitions. [2020-10-11 18:28:42,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 121 transitions, 1004 flow [2020-10-11 18:28:42,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 121 transitions, 893 flow, removed 30 selfloop flow, removed 11 redundant places. [2020-10-11 18:28:42,869 INFO L241 Difference]: Finished difference. Result has 128 places, 103 transitions, 665 flow [2020-10-11 18:28:42,869 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=665, PETRI_PLACES=128, PETRI_TRANSITIONS=103} [2020-10-11 18:28:42,870 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 45 predicate places. [2020-10-11 18:28:42,870 INFO L481 AbstractCegarLoop]: Abstraction has has 128 places, 103 transitions, 665 flow [2020-10-11 18:28:42,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-11 18:28:42,870 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:42,870 INFO L255 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] [2020-10-11 18:28:42,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 18:28:42,870 INFO L429 AbstractCegarLoop]: === Iteration 13 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:42,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:42,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1863008851, now seen corresponding path program 3 times [2020-10-11 18:28:42,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:42,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645740216] [2020-10-11 18:28:42,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:43,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:43,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645740216] [2020-10-11 18:28:43,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:43,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-11 18:28:43,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045328016] [2020-10-11 18:28:43,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-11 18:28:43,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:43,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-11 18:28:43,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-11 18:28:44,590 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 80 [2020-10-11 18:28:44,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 103 transitions, 665 flow. Second operand 10 states. [2020-10-11 18:28:44,591 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:44,591 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 80 [2020-10-11 18:28:44,591 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:45,050 INFO L129 PetriNetUnfolder]: 63/340 cut-off events. [2020-10-11 18:28:45,051 INFO L130 PetriNetUnfolder]: For 1966/2266 co-relation queries the response was YES. [2020-10-11 18:28:45,052 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1465 conditions, 340 events. 63/340 cut-off events. For 1966/2266 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1891 event pairs, 22 based on Foata normal form. 28/356 useless extension candidates. Maximal degree in co-relation 1394. Up to 99 conditions per place. [2020-10-11 18:28:45,054 INFO L132 encePairwiseOnDemand]: 69/80 looper letters, 28 selfloop transitions, 16 changer transitions 30/123 dead transitions. [2020-10-11 18:28:45,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 123 transitions, 1048 flow [2020-10-11 18:28:45,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:28:45,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:28:45,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 624 transitions. [2020-10-11 18:28:45,058 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.78 [2020-10-11 18:28:45,058 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 624 transitions. [2020-10-11 18:28:45,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 624 transitions. [2020-10-11 18:28:45,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:45,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 624 transitions. [2020-10-11 18:28:45,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:28:45,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:28:45,061 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:28:45,061 INFO L185 Difference]: Start difference. First operand has 128 places, 103 transitions, 665 flow. Second operand 10 states and 624 transitions. [2020-10-11 18:28:45,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 123 transitions, 1048 flow [2020-10-11 18:28:45,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 123 transitions, 960 flow, removed 19 selfloop flow, removed 14 redundant places. [2020-10-11 18:28:45,072 INFO L241 Difference]: Finished difference. Result has 123 places, 93 transitions, 574 flow [2020-10-11 18:28:45,073 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=574, PETRI_PLACES=123, PETRI_TRANSITIONS=93} [2020-10-11 18:28:45,073 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 40 predicate places. [2020-10-11 18:28:45,073 INFO L481 AbstractCegarLoop]: Abstraction has has 123 places, 93 transitions, 574 flow [2020-10-11 18:28:45,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-11 18:28:45,073 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:45,073 INFO L255 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] [2020-10-11 18:28:45,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-11 18:28:45,074 INFO L429 AbstractCegarLoop]: === Iteration 14 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:45,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:45,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1485795723, now seen corresponding path program 4 times [2020-10-11 18:28:45,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:45,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169964730] [2020-10-11 18:28:45,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:45,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:45,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169964730] [2020-10-11 18:28:45,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:45,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-11 18:28:45,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215675827] [2020-10-11 18:28:45,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-11 18:28:45,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:45,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-11 18:28:45,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-11 18:28:47,319 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 80 [2020-10-11 18:28:47,319 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 93 transitions, 574 flow. Second operand 10 states. [2020-10-11 18:28:47,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:47,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 80 [2020-10-11 18:28:47,320 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:47,721 INFO L129 PetriNetUnfolder]: 29/231 cut-off events. [2020-10-11 18:28:47,721 INFO L130 PetriNetUnfolder]: For 1063/1124 co-relation queries the response was YES. [2020-10-11 18:28:47,722 INFO L80 FinitePrefix]: Finished finitePrefix Result has 916 conditions, 231 events. 29/231 cut-off events. For 1063/1124 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 8 based on Foata normal form. 14/237 useless extension candidates. Maximal degree in co-relation 879. Up to 47 conditions per place. [2020-10-11 18:28:47,723 INFO L132 encePairwiseOnDemand]: 65/80 looper letters, 17 selfloop transitions, 23 changer transitions 13/102 dead transitions. [2020-10-11 18:28:47,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 102 transitions, 790 flow [2020-10-11 18:28:47,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:28:47,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:28:47,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 720 transitions. [2020-10-11 18:28:47,726 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.75 [2020-10-11 18:28:47,726 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 720 transitions. [2020-10-11 18:28:47,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 720 transitions. [2020-10-11 18:28:47,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:47,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 720 transitions. [2020-10-11 18:28:47,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:28:47,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:28:47,730 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:28:47,731 INFO L185 Difference]: Start difference. First operand has 123 places, 93 transitions, 574 flow. Second operand 12 states and 720 transitions. [2020-10-11 18:28:47,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 102 transitions, 790 flow [2020-10-11 18:28:47,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 102 transitions, 677 flow, removed 27 selfloop flow, removed 13 redundant places. [2020-10-11 18:28:47,738 INFO L241 Difference]: Finished difference. Result has 121 places, 89 transitions, 505 flow [2020-10-11 18:28:47,738 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=505, PETRI_PLACES=121, PETRI_TRANSITIONS=89} [2020-10-11 18:28:47,738 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 38 predicate places. [2020-10-11 18:28:47,738 INFO L481 AbstractCegarLoop]: Abstraction has has 121 places, 89 transitions, 505 flow [2020-10-11 18:28:47,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-11 18:28:47,739 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:47,739 INFO L255 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] [2020-10-11 18:28:47,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-11 18:28:47,739 INFO L429 AbstractCegarLoop]: === Iteration 15 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:47,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:47,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1806920857, now seen corresponding path program 1 times [2020-10-11 18:28:47,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:47,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524018455] [2020-10-11 18:28:47,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:48,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:48,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524018455] [2020-10-11 18:28:48,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:48,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-11 18:28:48,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659529557] [2020-10-11 18:28:48,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 18:28:48,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:48,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 18:28:48,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-11 18:28:53,357 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 80 [2020-10-11 18:28:53,358 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 89 transitions, 505 flow. Second operand 16 states. [2020-10-11 18:28:53,358 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:53,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 80 [2020-10-11 18:28:53,359 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:53,872 INFO L129 PetriNetUnfolder]: 21/188 cut-off events. [2020-10-11 18:28:53,873 INFO L130 PetriNetUnfolder]: For 649/876 co-relation queries the response was YES. [2020-10-11 18:28:53,874 INFO L80 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 188 events. 21/188 cut-off events. For 649/876 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 819 event pairs, 5 based on Foata normal form. 16/200 useless extension candidates. Maximal degree in co-relation 692. Up to 52 conditions per place. [2020-10-11 18:28:53,875 INFO L132 encePairwiseOnDemand]: 65/80 looper letters, 33 selfloop transitions, 10 changer transitions 24/110 dead transitions. [2020-10-11 18:28:53,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 110 transitions, 850 flow [2020-10-11 18:28:53,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-11 18:28:53,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-11 18:28:53,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 799 transitions. [2020-10-11 18:28:53,877 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7133928571428572 [2020-10-11 18:28:53,877 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 799 transitions. [2020-10-11 18:28:53,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 799 transitions. [2020-10-11 18:28:53,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:53,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 799 transitions. [2020-10-11 18:28:53,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-11 18:28:53,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-11 18:28:53,880 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-11 18:28:53,880 INFO L185 Difference]: Start difference. First operand has 121 places, 89 transitions, 505 flow. Second operand 14 states and 799 transitions. [2020-10-11 18:28:53,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 110 transitions, 850 flow [2020-10-11 18:28:53,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 110 transitions, 738 flow, removed 20 selfloop flow, removed 15 redundant places. [2020-10-11 18:28:53,886 INFO L241 Difference]: Finished difference. Result has 123 places, 84 transitions, 419 flow [2020-10-11 18:28:53,887 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=419, PETRI_PLACES=123, PETRI_TRANSITIONS=84} [2020-10-11 18:28:53,887 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 40 predicate places. [2020-10-11 18:28:53,887 INFO L481 AbstractCegarLoop]: Abstraction has has 123 places, 84 transitions, 419 flow [2020-10-11 18:28:53,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 18:28:53,887 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:53,887 INFO L255 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] [2020-10-11 18:28:53,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-11 18:28:53,888 INFO L429 AbstractCegarLoop]: === Iteration 16 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:53,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:53,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1527430391, now seen corresponding path program 2 times [2020-10-11 18:28:53,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:53,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474008438] [2020-10-11 18:28:53,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:54,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:54,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474008438] [2020-10-11 18:28:54,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:54,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-11 18:28:54,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968101969] [2020-10-11 18:28:54,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-11 18:28:54,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:54,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-11 18:28:54,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-11 18:28:55,739 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 80 [2020-10-11 18:28:55,740 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 84 transitions, 419 flow. Second operand 10 states. [2020-10-11 18:28:55,740 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:55,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 80 [2020-10-11 18:28:55,740 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:56,013 INFO L129 PetriNetUnfolder]: 8/132 cut-off events. [2020-10-11 18:28:56,013 INFO L130 PetriNetUnfolder]: For 440/516 co-relation queries the response was YES. [2020-10-11 18:28:56,013 INFO L80 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 132 events. 8/132 cut-off events. For 440/516 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 371 event pairs, 1 based on Foata normal form. 9/140 useless extension candidates. Maximal degree in co-relation 418. Up to 26 conditions per place. [2020-10-11 18:28:56,014 INFO L132 encePairwiseOnDemand]: 72/80 looper letters, 19 selfloop transitions, 6 changer transitions 19/93 dead transitions. [2020-10-11 18:28:56,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 93 transitions, 579 flow [2020-10-11 18:28:56,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 18:28:56,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-11 18:28:56,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 510 transitions. [2020-10-11 18:28:56,023 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.796875 [2020-10-11 18:28:56,023 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 510 transitions. [2020-10-11 18:28:56,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 510 transitions. [2020-10-11 18:28:56,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:56,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 510 transitions. [2020-10-11 18:28:56,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-11 18:28:56,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-11 18:28:56,026 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-11 18:28:56,027 INFO L185 Difference]: Start difference. First operand has 123 places, 84 transitions, 419 flow. Second operand 8 states and 510 transitions. [2020-10-11 18:28:56,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 93 transitions, 579 flow [2020-10-11 18:28:56,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 93 transitions, 513 flow, removed 19 selfloop flow, removed 14 redundant places. [2020-10-11 18:28:56,032 INFO L241 Difference]: Finished difference. Result has 113 places, 73 transitions, 296 flow [2020-10-11 18:28:56,032 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=296, PETRI_PLACES=113, PETRI_TRANSITIONS=73} [2020-10-11 18:28:56,032 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 30 predicate places. [2020-10-11 18:28:56,033 INFO L481 AbstractCegarLoop]: Abstraction has has 113 places, 73 transitions, 296 flow [2020-10-11 18:28:56,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-11 18:28:56,033 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:56,033 INFO L255 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] [2020-10-11 18:28:56,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-11 18:28:56,033 INFO L429 AbstractCegarLoop]: === Iteration 17 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:56,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:56,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1598319599, now seen corresponding path program 3 times [2020-10-11 18:28:56,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:56,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27367640] [2020-10-11 18:28:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:56,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27367640] [2020-10-11 18:28:56,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:56,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-11 18:28:56,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309771116] [2020-10-11 18:28:56,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 18:28:56,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:56,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 18:28:56,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-10-11 18:29:02,710 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 80 [2020-10-11 18:29:02,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 73 transitions, 296 flow. Second operand 16 states. [2020-10-11 18:29:02,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:29:02,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 80 [2020-10-11 18:29:02,714 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:29:02,980 INFO L129 PetriNetUnfolder]: 4/76 cut-off events. [2020-10-11 18:29:02,981 INFO L130 PetriNetUnfolder]: For 163/201 co-relation queries the response was YES. [2020-10-11 18:29:02,981 INFO L80 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 76 events. 4/76 cut-off events. For 163/201 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 64 event pairs, 1 based on Foata normal form. 9/85 useless extension candidates. Maximal degree in co-relation 192. Up to 13 conditions per place. [2020-10-11 18:29:02,982 INFO L132 encePairwiseOnDemand]: 69/80 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2020-10-11 18:29:02,982 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 71 transitions, 346 flow [2020-10-11 18:29:02,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:29:02,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:29:02,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 683 transitions. [2020-10-11 18:29:02,984 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7114583333333333 [2020-10-11 18:29:02,984 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 683 transitions. [2020-10-11 18:29:02,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 683 transitions. [2020-10-11 18:29:02,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:29:02,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 683 transitions. [2020-10-11 18:29:02,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:29:02,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:29:02,987 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:29:02,987 INFO L185 Difference]: Start difference. First operand has 113 places, 73 transitions, 296 flow. Second operand 12 states and 683 transitions. [2020-10-11 18:29:02,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 71 transitions, 346 flow [2020-10-11 18:29:02,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 71 transitions, 297 flow, removed 8 selfloop flow, removed 15 redundant places. [2020-10-11 18:29:02,989 INFO L241 Difference]: Finished difference. Result has 98 places, 0 transitions, 0 flow [2020-10-11 18:29:02,989 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=98, PETRI_TRANSITIONS=0} [2020-10-11 18:29:02,990 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 15 predicate places. [2020-10-11 18:29:02,990 INFO L481 AbstractCegarLoop]: Abstraction has has 98 places, 0 transitions, 0 flow [2020-10-11 18:29:02,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 18:29:02,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-11 18:29:02,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:29:02 BasicIcfg [2020-10-11 18:29:02,997 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:29:02,999 INFO L168 Benchmark]: Toolchain (without parser) took 57883.07 ms. Allocated memory was 251.1 MB in the beginning and 913.3 MB in the end (delta: 662.2 MB). Free memory was 206.1 MB in the beginning and 302.1 MB in the end (delta: -96.0 MB). Peak memory consumption was 566.2 MB. Max. memory is 14.2 GB. [2020-10-11 18:29:02,999 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:29:03,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.23 ms. Allocated memory was 251.1 MB in the beginning and 314.0 MB in the end (delta: 62.9 MB). Free memory was 206.1 MB in the beginning and 257.3 MB in the end (delta: -51.1 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:29:03,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.94 ms. Allocated memory is still 314.0 MB. Free memory was 257.3 MB in the beginning and 254.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:29:03,001 INFO L168 Benchmark]: Boogie Preprocessor took 64.45 ms. Allocated memory is still 314.0 MB. Free memory was 254.8 MB in the beginning and 252.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:29:03,002 INFO L168 Benchmark]: RCFGBuilder took 3664.39 ms. Allocated memory was 314.0 MB in the beginning and 371.7 MB in the end (delta: 57.7 MB). Free memory was 252.2 MB in the beginning and 161.5 MB in the end (delta: 90.8 MB). Peak memory consumption was 148.4 MB. Max. memory is 14.2 GB. [2020-10-11 18:29:03,003 INFO L168 Benchmark]: TraceAbstraction took 53271.84 ms. Allocated memory was 371.7 MB in the beginning and 913.3 MB in the end (delta: 541.6 MB). Free memory was 161.5 MB in the beginning and 302.1 MB in the end (delta: -140.7 MB). Peak memory consumption was 400.9 MB. Max. memory is 14.2 GB. [2020-10-11 18:29:03,007 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 811.23 ms. Allocated memory was 251.1 MB in the beginning and 314.0 MB in the end (delta: 62.9 MB). Free memory was 206.1 MB in the beginning and 257.3 MB in the end (delta: -51.1 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 65.94 ms. Allocated memory is still 314.0 MB. Free memory was 257.3 MB in the beginning and 254.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 64.45 ms. Allocated memory is still 314.0 MB. Free memory was 254.8 MB in the beginning and 252.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 3664.39 ms. Allocated memory was 314.0 MB in the beginning and 371.7 MB in the end (delta: 57.7 MB). Free memory was 252.2 MB in the beginning and 161.5 MB in the end (delta: 90.8 MB). Peak memory consumption was 148.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 53271.84 ms. Allocated memory was 371.7 MB in the beginning and 913.3 MB in the end (delta: 541.6 MB). Free memory was 161.5 MB in the beginning and 302.1 MB in the end (delta: -140.7 MB). Peak memory consumption was 400.9 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 79 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 53.0s, OverallIterations: 17, TraceHistogramMax: 1, AutomataDifference: 45.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1395 SDtfs, 1479 SDslu, 6922 SDs, 0 SdLazy, 6146 SolverSat, 660 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 296 GetRequests, 36 SyntacticMatches, 9 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=703occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 957 NumberOfCodeBlocks, 957 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 940 ConstructedInterpolants, 0 QuantifiedInterpolants, 404409 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...