./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe028_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe028_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d980c76e8a11b278f802f2ebe1b1841291f0c65 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:07:23,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:07:23,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:07:23,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:07:23,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:07:23,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:07:23,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:07:23,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:07:23,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:07:23,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:07:23,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:07:23,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:07:23,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:07:23,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:07:23,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:07:23,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:07:23,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:07:23,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:07:23,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:07:23,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:07:23,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:07:23,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:07:23,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:07:23,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:07:23,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:07:23,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:07:23,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:07:23,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:07:23,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:07:23,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:07:23,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:07:23,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:07:23,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:07:23,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:07:23,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:07:23,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:07:23,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:07:23,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:07:23,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:07:23,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:07:23,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:07:23,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:07:23,875 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:07:23,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:07:23,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:07:23,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:07:23,877 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:07:23,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:07:23,878 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:07:23,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:07:23,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:07:23,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:07:23,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:07:23,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:07:23,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:07:23,879 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:07:23,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:07:23,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:07:23,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:07:23,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:07:23,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:07:23,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:07:23,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:07:23,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:07:23,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:07:23,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:07:23,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:07:23,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:07:23,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:07:23,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:07:23,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:07:23,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d980c76e8a11b278f802f2ebe1b1841291f0c65 [2020-10-20 03:07:24,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:07:24,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:07:24,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:07:24,104 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:07:24,105 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:07:24,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe028_tso.oepc.i [2020-10-20 03:07:24,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d775c4d72/4d72239c4343441a9058d61588da6e08/FLAG9a6b7977e [2020-10-20 03:07:24,761 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:07:24,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe028_tso.oepc.i [2020-10-20 03:07:24,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d775c4d72/4d72239c4343441a9058d61588da6e08/FLAG9a6b7977e [2020-10-20 03:07:25,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d775c4d72/4d72239c4343441a9058d61588da6e08 [2020-10-20 03:07:25,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:07:25,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:07:25,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:07:25,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:07:25,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:07:25,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:07:25" (1/1) ... [2020-10-20 03:07:25,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c78070d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25, skipping insertion in model container [2020-10-20 03:07:25,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:07:25" (1/1) ... [2020-10-20 03:07:25,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:07:25,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:07:25,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:07:25,571 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:07:25,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:07:25,773 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:07:25,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25 WrapperNode [2020-10-20 03:07:25,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:07:25,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:07:25,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:07:25,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:07:25,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25" (1/1) ... [2020-10-20 03:07:25,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25" (1/1) ... [2020-10-20 03:07:25,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:07:25,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:07:25,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:07:25,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:07:25,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25" (1/1) ... [2020-10-20 03:07:25,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25" (1/1) ... [2020-10-20 03:07:25,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25" (1/1) ... [2020-10-20 03:07:25,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25" (1/1) ... [2020-10-20 03:07:25,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25" (1/1) ... [2020-10-20 03:07:25,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25" (1/1) ... [2020-10-20 03:07:25,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25" (1/1) ... [2020-10-20 03:07:25,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:07:25,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:07:25,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:07:25,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:07:25,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25" (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 [2020-10-20 03:07:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:07:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:07:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:07:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:07:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:07:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:07:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:07:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:07:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-20 03:07:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-20 03:07:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:07:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:07:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:07:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:07:25,941 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 03:07:26,302 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:07:26,303 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:07:26,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:07:26 BoogieIcfgContainer [2020-10-20 03:07:26,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:07:26,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:07:26,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:07:26,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:07:26,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:07:25" (1/3) ... [2020-10-20 03:07:26,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6feb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:07:26, skipping insertion in model container [2020-10-20 03:07:26,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:07:25" (2/3) ... [2020-10-20 03:07:26,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6feb2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:07:26, skipping insertion in model container [2020-10-20 03:07:26,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:07:26" (3/3) ... [2020-10-20 03:07:26,315 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2020-10-20 03:07:26,337 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:07:26,337 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:07:26,353 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:07:26,355 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:07:26,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,415 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,415 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,425 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,426 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,426 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,428 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,428 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,432 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,433 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,433 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,443 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,444 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,444 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,444 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,447 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,447 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,447 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,447 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:07:26,449 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:07:26,461 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 03:07:26,478 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:07:26,479 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:07:26,479 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:07:26,479 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:07:26,479 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:07:26,479 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:07:26,479 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:07:26,479 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:07:26,494 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:07:26,496 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-20 03:07:26,498 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-20 03:07:26,500 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-20 03:07:26,548 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-20 03:07:26,549 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:07:26,554 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-20 03:07:26,557 INFO L117 LiptonReduction]: Number of co-enabled transitions 1348 [2020-10-20 03:07:28,642 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-20 03:07:28,796 INFO L132 LiptonReduction]: Checked pairs total: 2810 [2020-10-20 03:07:28,796 INFO L134 LiptonReduction]: Total number of compositions: 74 [2020-10-20 03:07:28,803 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 21 transitions, 57 flow [2020-10-20 03:07:28,845 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-20 03:07:28,848 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-20 03:07:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 03:07:28,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:28,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:28,860 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:28,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:28,866 INFO L82 PathProgramCache]: Analyzing trace with hash -831263322, now seen corresponding path program 1 times [2020-10-20 03:07:28,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:28,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054832650] [2020-10-20 03:07:28,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:29,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054832650] [2020-10-20 03:07:29,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:29,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 03:07:29,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203288656] [2020-10-20 03:07:29,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 03:07:29,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:29,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 03:07:29,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:07:29,118 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-20 03:07:29,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:29,164 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-10-20 03:07:29,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 03:07:29,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 03:07:29,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:29,181 INFO L225 Difference]: With dead ends: 214 [2020-10-20 03:07:29,181 INFO L226 Difference]: Without dead ends: 166 [2020-10-20 03:07:29,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 03:07:29,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-20 03:07:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-20 03:07:29,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-20 03:07:29,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-10-20 03:07:29,246 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-10-20 03:07:29,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:29,247 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-10-20 03:07:29,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 03:07:29,247 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-10-20 03:07:29,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 03:07:29,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:29,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:29,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:07:29,250 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:29,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:29,250 INFO L82 PathProgramCache]: Analyzing trace with hash 639961, now seen corresponding path program 1 times [2020-10-20 03:07:29,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:29,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023125492] [2020-10-20 03:07:29,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:29,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:29,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023125492] [2020-10-20 03:07:29,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:29,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:07:29,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893593668] [2020-10-20 03:07:29,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:29,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:29,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:29,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:29,357 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-10-20 03:07:29,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:29,389 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-10-20 03:07:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:07:29,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-20 03:07:29,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:29,392 INFO L225 Difference]: With dead ends: 202 [2020-10-20 03:07:29,392 INFO L226 Difference]: Without dead ends: 130 [2020-10-20 03:07:29,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:07:29,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-20 03:07:29,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-20 03:07:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-20 03:07:29,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-10-20 03:07:29,409 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-10-20 03:07:29,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:29,409 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-10-20 03:07:29,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:29,409 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-10-20 03:07:29,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 03:07:29,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:29,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:29,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:07:29,411 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:29,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:29,412 INFO L82 PathProgramCache]: Analyzing trace with hash 19828348, now seen corresponding path program 1 times [2020-10-20 03:07:29,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:29,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011212984] [2020-10-20 03:07:29,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:29,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:29,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011212984] [2020-10-20 03:07:29,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:29,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:07:29,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455230059] [2020-10-20 03:07:29,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:29,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:29,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:29,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:29,559 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 4 states. [2020-10-20 03:07:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:29,601 INFO L93 Difference]: Finished difference Result 148 states and 336 transitions. [2020-10-20 03:07:29,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:07:29,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-20 03:07:29,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:29,603 INFO L225 Difference]: With dead ends: 148 [2020-10-20 03:07:29,603 INFO L226 Difference]: Without dead ends: 112 [2020-10-20 03:07:29,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:07:29,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-20 03:07:29,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-20 03:07:29,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-20 03:07:29,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 253 transitions. [2020-10-20 03:07:29,638 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 253 transitions. Word has length 10 [2020-10-20 03:07:29,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:29,639 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 253 transitions. [2020-10-20 03:07:29,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:29,641 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 253 transitions. [2020-10-20 03:07:29,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 03:07:29,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:29,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:29,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:07:29,644 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:29,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:29,646 INFO L82 PathProgramCache]: Analyzing trace with hash 595600524, now seen corresponding path program 1 times [2020-10-20 03:07:29,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:29,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290284535] [2020-10-20 03:07:29,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:29,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:29,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290284535] [2020-10-20 03:07:29,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:29,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:07:29,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808167672] [2020-10-20 03:07:29,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:07:29,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:29,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:07:29,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:07:29,726 INFO L87 Difference]: Start difference. First operand 112 states and 253 transitions. Second operand 5 states. [2020-10-20 03:07:29,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:29,771 INFO L93 Difference]: Finished difference Result 109 states and 227 transitions. [2020-10-20 03:07:29,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:07:29,772 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-20 03:07:29,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:29,773 INFO L225 Difference]: With dead ends: 109 [2020-10-20 03:07:29,773 INFO L226 Difference]: Without dead ends: 85 [2020-10-20 03:07:29,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:07:29,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-20 03:07:29,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-20 03:07:29,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-20 03:07:29,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-10-20 03:07:29,781 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 11 [2020-10-20 03:07:29,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:29,782 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-10-20 03:07:29,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:07:29,782 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-10-20 03:07:29,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:07:29,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:29,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:29,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:07:29,785 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:29,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:29,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1088953398, now seen corresponding path program 1 times [2020-10-20 03:07:29,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:29,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358918127] [2020-10-20 03:07:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:29,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:29,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358918127] [2020-10-20 03:07:29,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:29,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:07:29,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162530209] [2020-10-20 03:07:29,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 03:07:29,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:29,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 03:07:29,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:07:29,876 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-10-20 03:07:29,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:29,936 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-10-20 03:07:29,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 03:07:29,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-20 03:07:29,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:29,938 INFO L225 Difference]: With dead ends: 80 [2020-10-20 03:07:29,938 INFO L226 Difference]: Without dead ends: 72 [2020-10-20 03:07:29,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:07:29,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-20 03:07:29,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-20 03:07:29,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-20 03:07:29,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-10-20 03:07:29,945 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-10-20 03:07:29,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:29,945 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-10-20 03:07:29,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 03:07:29,946 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-10-20 03:07:29,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 03:07:29,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:29,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:29,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:07:29,948 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:29,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:29,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1996779088, now seen corresponding path program 1 times [2020-10-20 03:07:29,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:29,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717115569] [2020-10-20 03:07:29,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:29,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717115569] [2020-10-20 03:07:29,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:29,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:07:29,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334621468] [2020-10-20 03:07:29,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:29,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:29,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:29,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:29,993 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-10-20 03:07:30,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:30,009 INFO L93 Difference]: Finished difference Result 85 states and 168 transitions. [2020-10-20 03:07:30,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:07:30,010 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-20 03:07:30,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:30,011 INFO L225 Difference]: With dead ends: 85 [2020-10-20 03:07:30,011 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 03:07:30,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:07:30,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 03:07:30,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-20 03:07:30,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 03:07:30,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-10-20 03:07:30,028 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-10-20 03:07:30,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:30,028 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-10-20 03:07:30,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-10-20 03:07:30,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 03:07:30,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:07:30,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:07:30,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 03:07:30,029 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:07:30,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:07:30,030 INFO L82 PathProgramCache]: Analyzing trace with hash 242478162, now seen corresponding path program 2 times [2020-10-20 03:07:30,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:07:30,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512267735] [2020-10-20 03:07:30,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:07:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:07:30,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:07:30,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512267735] [2020-10-20 03:07:30,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:07:30,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:07:30,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84280913] [2020-10-20 03:07:30,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:07:30,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:07:30,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:07:30,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:07:30,071 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-10-20 03:07:30,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:07:30,086 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-10-20 03:07:30,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 03:07:30,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-20 03:07:30,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:07:30,086 INFO L225 Difference]: With dead ends: 32 [2020-10-20 03:07:30,086 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:07:30,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:07:30,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:07:30,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:07:30,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:07:30,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:07:30,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-20 03:07:30,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:07:30,088 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:07:30,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:07:30,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:07:30,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:07:30,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 03:07:30,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:07:30 BasicIcfg [2020-10-20 03:07:30,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:07:30,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:07:30,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:07:30,094 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:07:30,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:07:26" (3/4) ... [2020-10-20 03:07:30,098 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:07:30,106 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:07:30,106 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:07:30,107 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-10-20 03:07:30,112 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 03:07:30,112 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:07:30,113 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:07:30,113 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:07:30,164 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:07:30,165 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:07:30,167 INFO L168 Benchmark]: Toolchain (without parser) took 5121.04 ms. Allocated memory was 35.7 MB in the beginning and 78.1 MB in the end (delta: 42.5 MB). Free memory was 8.1 MB in the beginning and 41.2 MB in the end (delta: -33.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:30,168 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 35.7 MB. Free memory is still 14.6 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 03:07:30,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.48 ms. Allocated memory was 35.7 MB in the beginning and 48.2 MB in the end (delta: 12.6 MB). Free memory was 7.2 MB in the beginning and 23.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:30,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.67 ms. Allocated memory is still 48.2 MB. Free memory was 23.4 MB in the beginning and 21.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:30,170 INFO L168 Benchmark]: Boogie Preprocessor took 28.81 ms. Allocated memory is still 48.2 MB. Free memory was 21.2 MB in the beginning and 19.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:30,170 INFO L168 Benchmark]: RCFGBuilder took 447.32 ms. Allocated memory is still 48.2 MB. Free memory was 19.6 MB in the beginning and 14.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:30,171 INFO L168 Benchmark]: TraceAbstraction took 3785.55 ms. Allocated memory was 48.2 MB in the beginning and 78.1 MB in the end (delta: 29.9 MB). Free memory was 14.6 MB in the beginning and 44.2 MB in the end (delta: -29.5 MB). Peak memory consumption was 348.9 kB. Max. memory is 14.3 GB. [2020-10-20 03:07:30,172 INFO L168 Benchmark]: Witness Printer took 71.60 ms. Allocated memory is still 78.1 MB. Free memory was 44.2 MB in the beginning and 41.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 03:07:30,176 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 35.7 MB. Free memory is still 14.6 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 722.48 ms. Allocated memory was 35.7 MB in the beginning and 48.2 MB in the end (delta: 12.6 MB). Free memory was 7.2 MB in the beginning and 23.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 53.67 ms. Allocated memory is still 48.2 MB. Free memory was 23.4 MB in the beginning and 21.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 28.81 ms. Allocated memory is still 48.2 MB. Free memory was 21.2 MB in the beginning and 19.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 447.32 ms. Allocated memory is still 48.2 MB. Free memory was 19.6 MB in the beginning and 14.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3785.55 ms. Allocated memory was 48.2 MB in the beginning and 78.1 MB in the end (delta: 29.9 MB). Free memory was 14.6 MB in the beginning and 44.2 MB in the end (delta: -29.5 MB). Peak memory consumption was 348.9 kB. Max. memory is 14.3 GB. * Witness Printer took 71.60 ms. Allocated memory is still 78.1 MB. Free memory was 44.2 MB in the beginning and 41.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1004 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.2s, 85 PlacesBefore, 30 PlacesAfterwards, 78 TransitionsBefore, 21 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 124 SDtfs, 127 SDslu, 166 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2620 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...