/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:14:22,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:14:22,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:14:22,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:14:22,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:14:22,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:14:22,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:14:22,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:14:22,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:14:22,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:14:22,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:14:22,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:14:22,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:14:22,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:14:22,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:14:22,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:14:22,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:14:22,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:14:22,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:14:22,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:14:22,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:14:22,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:14:22,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:14:22,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:14:22,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 15:14:22,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 15:14:22,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 15:14:22,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 15:14:22,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 15:14:22,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 15:14:22,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:14:22,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:14:22,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:14:22,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:14:22,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:14:22,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:14:22,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:14:22,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:14:22,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:14:22,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:14:22,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:14:22,622 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 15:14:22,658 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:14:22,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:14:22,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:14:22,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:14:22,663 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:14:22,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:14:22,663 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:14:22,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:14:22,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:14:22,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:14:22,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:14:22,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:14:22,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:14:22,666 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:14:22,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:14:22,667 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:14:22,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:14:22,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:14:22,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:14:22,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:14:22,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:14:22,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:14:22,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:14:22,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:14:22,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:14:22,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:14:22,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:14:22,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:14:22,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:14:22,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:14:23,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:14:23,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:14:23,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:14:23,148 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:14:23,149 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:14:23,150 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2020-09-11 15:14:23,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7ffe462f/09298e2f42b541b2b6cd7967cc692628/FLAG38f66a8e1 [2020-09-11 15:14:23,884 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:14:23,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2020-09-11 15:14:23,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7ffe462f/09298e2f42b541b2b6cd7967cc692628/FLAG38f66a8e1 [2020-09-11 15:14:24,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7ffe462f/09298e2f42b541b2b6cd7967cc692628 [2020-09-11 15:14:24,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:14:24,226 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:14:24,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:14:24,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:14:24,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:14:24,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:14:24" (1/1) ... [2020-09-11 15:14:24,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689e8b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:24, skipping insertion in model container [2020-09-11 15:14:24,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:14:24" (1/1) ... [2020-09-11 15:14:24,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:14:24,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:14:24,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:14:24,916 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:14:24,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:14:25,059 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:14:25,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:25 WrapperNode [2020-09-11 15:14:25,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:14:25,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:14:25,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:14:25,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:14:25,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:25" (1/1) ... [2020-09-11 15:14:25,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:25" (1/1) ... [2020-09-11 15:14:25,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:14:25,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:14:25,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:14:25,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:14:25,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:25" (1/1) ... [2020-09-11 15:14:25,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:25" (1/1) ... [2020-09-11 15:14:25,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:25" (1/1) ... [2020-09-11 15:14:25,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:25" (1/1) ... [2020-09-11 15:14:25,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:25" (1/1) ... [2020-09-11 15:14:25,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:25" (1/1) ... [2020-09-11 15:14:25,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:25" (1/1) ... [2020-09-11 15:14:25,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:14:25,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:14:25,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:14:25,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:14:25,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-11 15:14:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:14:25,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:14:25,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:14:25,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:14:25,230 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 15:14:25,230 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 15:14:25,230 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 15:14:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 15:14:25,231 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 15:14:25,231 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 15:14:25,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:14:25,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:14:25,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:14:25,234 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 15:14:25,643 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:14:25,644 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 15:14:25,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:14:25 BoogieIcfgContainer [2020-09-11 15:14:25,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:14:25,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:14:25,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:14:25,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:14:25,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:14:24" (1/3) ... [2020-09-11 15:14:25,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f14cc7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:14:25, skipping insertion in model container [2020-09-11 15:14:25,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:14:25" (2/3) ... [2020-09-11 15:14:25,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f14cc7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:14:25, skipping insertion in model container [2020-09-11 15:14:25,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:14:25" (3/3) ... [2020-09-11 15:14:25,659 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2020-09-11 15:14:25,669 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:14:25,669 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:14:25,679 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:14:25,680 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:14:25,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,713 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,714 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,715 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,715 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,715 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,716 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,717 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,717 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,717 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,717 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,718 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,718 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,727 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,727 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,737 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,737 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,738 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,738 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,742 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,743 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:14:25,768 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 15:14:25,794 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:14:25,794 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:14:25,795 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:14:25,795 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:14:25,795 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:14:25,795 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:14:25,795 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:14:25,795 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:14:25,817 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-09-11 15:14:25,820 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-11 15:14:25,871 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-11 15:14:25,871 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:14:25,877 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-11 15:14:25,880 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-11 15:14:25,909 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-11 15:14:25,911 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:14:25,912 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-11 15:14:25,914 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1186 [2020-09-11 15:14:25,916 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:14:27,401 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-09-11 15:14:27,741 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1951 [2020-09-11 15:14:27,742 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-09-11 15:14:27,747 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-09-11 15:14:27,784 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-09-11 15:14:27,787 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-09-11 15:14:27,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 15:14:27,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:14:27,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:14:27,800 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:14:27,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:14:27,811 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-09-11 15:14:27,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:14:27,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65038765] [2020-09-11 15:14:27,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:14:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:14:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:14:28,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65038765] [2020-09-11 15:14:28,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:14:28,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 15:14:28,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493465569] [2020-09-11 15:14:28,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:14:28,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:14:28,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:14:28,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:14:28,140 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-09-11 15:14:28,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:14:28,213 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-09-11 15:14:28,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:14:28,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-11 15:14:28,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:14:28,232 INFO L225 Difference]: With dead ends: 222 [2020-09-11 15:14:28,232 INFO L226 Difference]: Without dead ends: 174 [2020-09-11 15:14:28,234 INFO L675 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 [2020-09-11 15:14:28,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-09-11 15:14:28,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-09-11 15:14:28,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-11 15:14:28,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-09-11 15:14:28,304 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-09-11 15:14:28,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:14:28,306 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-09-11 15:14:28,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:14:28,306 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-09-11 15:14:28,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 15:14:28,308 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:14:28,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:14:28,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:14:28,309 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:14:28,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:14:28,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1586119381, now seen corresponding path program 1 times [2020-09-11 15:14:28,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:14:28,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253626400] [2020-09-11 15:14:28,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:14:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:14:28,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:14:28,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253626400] [2020-09-11 15:14:28,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:14:28,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:14:28,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038046910] [2020-09-11 15:14:28,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:14:28,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:14:28,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:14:28,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:14:28,468 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-09-11 15:14:28,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:14:28,511 INFO L93 Difference]: Finished difference Result 204 states and 513 transitions. [2020-09-11 15:14:28,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 15:14:28,513 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-11 15:14:28,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:14:28,515 INFO L225 Difference]: With dead ends: 204 [2020-09-11 15:14:28,515 INFO L226 Difference]: Without dead ends: 108 [2020-09-11 15:14:28,516 INFO L675 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 [2020-09-11 15:14:28,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-11 15:14:28,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-09-11 15:14:28,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-09-11 15:14:28,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 253 transitions. [2020-09-11 15:14:28,528 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 253 transitions. Word has length 9 [2020-09-11 15:14:28,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:14:28,529 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 253 transitions. [2020-09-11 15:14:28,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:14:28,529 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 253 transitions. [2020-09-11 15:14:28,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 15:14:28,530 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:14:28,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:14:28,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:14:28,531 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:14:28,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:14:28,531 INFO L82 PathProgramCache]: Analyzing trace with hash 409264718, now seen corresponding path program 1 times [2020-09-11 15:14:28,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:14:28,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996814471] [2020-09-11 15:14:28,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:14:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:14:28,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:14:28,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996814471] [2020-09-11 15:14:28,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:14:28,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 15:14:28,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655378878] [2020-09-11 15:14:28,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:14:28,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:14:28,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:14:28,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:14:28,635 INFO L87 Difference]: Start difference. First operand 108 states and 253 transitions. Second operand 3 states. [2020-09-11 15:14:28,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:14:28,645 INFO L93 Difference]: Finished difference Result 106 states and 246 transitions. [2020-09-11 15:14:28,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:14:28,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-11 15:14:28,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:14:28,648 INFO L225 Difference]: With dead ends: 106 [2020-09-11 15:14:28,648 INFO L226 Difference]: Without dead ends: 106 [2020-09-11 15:14:28,649 INFO L675 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 [2020-09-11 15:14:28,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-11 15:14:28,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-09-11 15:14:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-11 15:14:28,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 246 transitions. [2020-09-11 15:14:28,659 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 246 transitions. Word has length 11 [2020-09-11 15:14:28,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:14:28,660 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 246 transitions. [2020-09-11 15:14:28,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:14:28,660 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 246 transitions. [2020-09-11 15:14:28,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:14:28,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:14:28,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:14:28,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:14:28,662 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:14:28,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:14:28,662 INFO L82 PathProgramCache]: Analyzing trace with hash -197699224, now seen corresponding path program 1 times [2020-09-11 15:14:28,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:14:28,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660525176] [2020-09-11 15:14:28,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:14:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:14:28,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:14:28,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660525176] [2020-09-11 15:14:28,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:14:28,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:14:28,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907047729] [2020-09-11 15:14:28,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:14:28,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:14:28,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:14:28,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:14:28,733 INFO L87 Difference]: Start difference. First operand 106 states and 246 transitions. Second operand 4 states. [2020-09-11 15:14:28,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:14:28,760 INFO L93 Difference]: Finished difference Result 138 states and 314 transitions. [2020-09-11 15:14:28,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 15:14:28,760 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-11 15:14:28,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:14:28,761 INFO L225 Difference]: With dead ends: 138 [2020-09-11 15:14:28,762 INFO L226 Difference]: Without dead ends: 60 [2020-09-11 15:14:28,762 INFO L675 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 [2020-09-11 15:14:28,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-11 15:14:28,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-11 15:14:28,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-11 15:14:28,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-09-11 15:14:28,769 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 12 [2020-09-11 15:14:28,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:14:28,769 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-09-11 15:14:28,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:14:28,769 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-09-11 15:14:28,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:14:28,770 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:14:28,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:14:28,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 15:14:28,771 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:14:28,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:14:28,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 2 times [2020-09-11 15:14:28,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:14:28,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509420046] [2020-09-11 15:14:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:14:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:14:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:14:28,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509420046] [2020-09-11 15:14:28,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:14:28,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:14:28,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362601941] [2020-09-11 15:14:28,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:14:28,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:14:28,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:14:28,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:14:28,902 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-09-11 15:14:28,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:14:28,941 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-09-11 15:14:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:14:28,944 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-11 15:14:28,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:14:28,945 INFO L225 Difference]: With dead ends: 73 [2020-09-11 15:14:28,948 INFO L226 Difference]: Without dead ends: 52 [2020-09-11 15:14:28,948 INFO L675 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 [2020-09-11 15:14:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-11 15:14:28,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-11 15:14:28,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-11 15:14:28,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-09-11 15:14:28,956 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-09-11 15:14:28,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:14:28,956 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-09-11 15:14:28,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:14:28,956 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-09-11 15:14:28,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 15:14:28,957 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:14:28,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:14:28,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 15:14:28,958 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:14:28,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:14:28,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-09-11 15:14:28,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:14:28,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395695707] [2020-09-11 15:14:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:14:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:14:29,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:14:29,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395695707] [2020-09-11 15:14:29,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:14:29,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:14:29,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237389111] [2020-09-11 15:14:29,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:14:29,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:14:29,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:14:29,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:14:29,121 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-09-11 15:14:29,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:14:29,188 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-09-11 15:14:29,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:14:29,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-11 15:14:29,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:14:29,193 INFO L225 Difference]: With dead ends: 53 [2020-09-11 15:14:29,193 INFO L226 Difference]: Without dead ends: 38 [2020-09-11 15:14:29,193 INFO L675 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 [2020-09-11 15:14:29,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-11 15:14:29,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-11 15:14:29,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-11 15:14:29,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-09-11 15:14:29,204 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-09-11 15:14:29,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:14:29,205 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-09-11 15:14:29,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:14:29,205 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-09-11 15:14:29,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 15:14:29,211 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:14:29,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:14:29,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 15:14:29,212 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:14:29,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:14:29,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-09-11 15:14:29,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:14:29,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938582962] [2020-09-11 15:14:29,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:14:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:14:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:14:29,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938582962] [2020-09-11 15:14:29,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:14:29,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:14:29,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320133752] [2020-09-11 15:14:29,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 15:14:29,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:14:29,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 15:14:29,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:14:29,399 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-09-11 15:14:29,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:14:29,458 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-09-11 15:14:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 15:14:29,459 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-09-11 15:14:29,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:14:29,460 INFO L225 Difference]: With dead ends: 35 [2020-09-11 15:14:29,460 INFO L226 Difference]: Without dead ends: 29 [2020-09-11 15:14:29,460 INFO L675 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 [2020-09-11 15:14:29,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-11 15:14:29,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-09-11 15:14:29,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-09-11 15:14:29,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-09-11 15:14:29,463 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-09-11 15:14:29,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:14:29,464 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-09-11 15:14:29,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 15:14:29,464 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-09-11 15:14:29,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-11 15:14:29,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:14:29,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:14:29,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 15:14:29,465 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:14:29,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:14:29,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-09-11 15:14:29,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:14:29,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820501873] [2020-09-11 15:14:29,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:14:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:14:29,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:14:29,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820501873] [2020-09-11 15:14:29,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:14:29,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:14:29,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170103342] [2020-09-11 15:14:29,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:14:29,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:14:29,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:14:29,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:14:29,512 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-09-11 15:14:29,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:14:29,520 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-09-11 15:14:29,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:14:29,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-09-11 15:14:29,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:14:29,521 INFO L225 Difference]: With dead ends: 28 [2020-09-11 15:14:29,521 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:14:29,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:14:29,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:14:29,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:14:29,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:14:29,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:14:29,522 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-11 15:14:29,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:14:29,523 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:14:29,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:14:29,523 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:14:29,523 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:14:29,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 15:14:29,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:14:29 BasicIcfg [2020-09-11 15:14:29,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:14:29,532 INFO L168 Benchmark]: Toolchain (without parser) took 5310.77 ms. Allocated memory was 138.4 MB in the beginning and 251.1 MB in the end (delta: 112.7 MB). Free memory was 98.6 MB in the beginning and 195.8 MB in the end (delta: -97.2 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2020-09-11 15:14:29,533 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.3 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-09-11 15:14:29,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 833.92 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 98.1 MB in the beginning and 159.4 MB in the end (delta: -61.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:14:29,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.70 ms. Allocated memory is still 202.4 MB. Free memory was 158.4 MB in the beginning and 156.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 15:14:29,536 INFO L168 Benchmark]: Boogie Preprocessor took 30.22 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 155.4 MB in the end (delta: 984.4 kB). Peak memory consumption was 984.4 kB. Max. memory is 7.1 GB. [2020-09-11 15:14:29,536 INFO L168 Benchmark]: RCFGBuilder took 503.50 ms. Allocated memory is still 202.4 MB. Free memory was 155.4 MB in the beginning and 133.1 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:14:29,537 INFO L168 Benchmark]: TraceAbstraction took 3879.18 ms. Allocated memory was 202.4 MB in the beginning and 251.1 MB in the end (delta: 48.8 MB). Free memory was 133.1 MB in the beginning and 195.8 MB in the end (delta: -62.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 15:14:29,542 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.3 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 833.92 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 98.1 MB in the beginning and 159.4 MB in the end (delta: -61.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.70 ms. Allocated memory is still 202.4 MB. Free memory was 158.4 MB in the beginning and 156.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.22 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 155.4 MB in the end (delta: 984.4 kB). Peak memory consumption was 984.4 kB. Max. memory is 7.1 GB. * RCFGBuilder took 503.50 ms. Allocated memory is still 202.4 MB. Free memory was 155.4 MB in the beginning and 133.1 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3879.18 ms. Allocated memory was 202.4 MB in the beginning and 251.1 MB in the end (delta: 48.8 MB). Free memory was 133.1 MB in the beginning and 195.8 MB in the end (delta: -62.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 634 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1951 CheckedPairsTotal, 54 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 125 SDtfs, 102 SDslu, 132 SDs, 0 SdLazy, 102 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 3039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...