/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/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:04:24,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:04:24,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:04:24,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:04:24,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:04:24,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:04:24,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:04:24,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:04:24,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:04:24,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:04:24,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:04:24,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:04:24,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:04:24,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:04:24,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:04:24,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:04:24,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:04:24,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:04:24,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:04:24,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:04:24,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:04:24,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:04:24,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:04:24,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:04:24,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:04:24,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:04:24,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:04:24,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:04:24,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:04:24,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:04:24,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:04:24,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:04:24,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:04:24,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:04:24,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:04:24,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:04:24,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:04:24,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:04:24,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:04:24,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:04:24,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:04:24,443 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:04:24,484 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:04:24,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:04:24,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:04:24,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:04:24,487 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:04:24,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:04:24,488 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:04:24,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:04:24,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:04:24,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:04:24,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:04:24,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:04:24,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:04:24,491 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:04:24,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:04:24,492 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:04:24,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:04:24,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:04:24,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:04:24,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:04:24,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:04:24,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:04:24,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:04:24,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:04:24,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:04:24,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:04:24,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:04:24,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:04:24,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:04:24,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:04:24,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:04:24,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:04:24,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:04:24,848 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:04:24,848 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:04:24,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-10-21 22:04:24,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c4e7f85/931e56fd00f54664ab4bcef4415ee839/FLAGbd00db6c2 [2020-10-21 22:04:25,445 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:04:25,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-10-21 22:04:25,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c4e7f85/931e56fd00f54664ab4bcef4415ee839/FLAGbd00db6c2 [2020-10-21 22:04:25,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c4e7f85/931e56fd00f54664ab4bcef4415ee839 [2020-10-21 22:04:25,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:04:25,725 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:04:25,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:04:25,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:04:25,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:04:25,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:04:25" (1/1) ... [2020-10-21 22:04:25,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5123a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:25, skipping insertion in model container [2020-10-21 22:04:25,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:04:25" (1/1) ... [2020-10-21 22:04:25,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:04:25,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:04:26,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:04:26,273 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:04:26,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:04:26,440 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:04:26,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:26 WrapperNode [2020-10-21 22:04:26,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:04:26,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:04:26,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:04:26,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:04:26,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:26" (1/1) ... [2020-10-21 22:04:26,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:26" (1/1) ... [2020-10-21 22:04:26,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:04:26,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:04:26,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:04:26,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:04:26,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:26" (1/1) ... [2020-10-21 22:04:26,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:26" (1/1) ... [2020-10-21 22:04:26,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:26" (1/1) ... [2020-10-21 22:04:26,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:26" (1/1) ... [2020-10-21 22:04:26,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:26" (1/1) ... [2020-10-21 22:04:26,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:26" (1/1) ... [2020-10-21 22:04:26,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:26" (1/1) ... [2020-10-21 22:04:26,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:04:26,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:04:26,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:04:26,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:04:26,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:26" (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 [2020-10-21 22:04:26,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:04:26,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:04:26,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:04:26,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:04:26,597 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 22:04:26,598 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 22:04:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 22:04:26,598 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 22:04:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 22:04:26,598 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 22:04:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:04:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:04:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:04:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:04:26,601 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:04:27,016 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:04:27,017 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 22:04:27,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:04:27 BoogieIcfgContainer [2020-10-21 22:04:27,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:04:27,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:04:27,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:04:27,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:04:27,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:04:25" (1/3) ... [2020-10-21 22:04:27,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29754733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:04:27, skipping insertion in model container [2020-10-21 22:04:27,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:04:26" (2/3) ... [2020-10-21 22:04:27,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29754733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:04:27, skipping insertion in model container [2020-10-21 22:04:27,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:04:27" (3/3) ... [2020-10-21 22:04:27,030 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2020-10-21 22:04:27,043 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:04:27,043 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:04:27,053 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:04:27,054 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:04:27,093 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,094 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,094 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,094 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,095 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,095 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,097 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,098 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,098 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,098 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,099 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,100 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,100 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,101 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,102 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,102 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,112 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,112 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,124 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,124 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,136 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,137 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:04:27,139 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:04:27,154 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 22:04:27,177 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:04:27,178 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:04:27,178 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:04:27,178 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:04:27,178 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:04:27,178 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:04:27,179 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:04:27,179 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:04:27,193 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:04:27,196 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-21 22:04:27,198 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-21 22:04:27,200 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 169 flow [2020-10-21 22:04:27,243 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2020-10-21 22:04:27,243 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:04:27,249 INFO L80 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 22:04:27,252 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 22:04:28,930 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-21 22:04:29,077 INFO L131 LiptonReduction]: Checked pairs total: 3066 [2020-10-21 22:04:29,078 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-10-21 22:04:29,085 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-21 22:04:29,115 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-21 22:04:29,117 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-21 22:04:29,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:04:29,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:04:29,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:04:29,127 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:04:29,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:04:29,133 INFO L82 PathProgramCache]: Analyzing trace with hash 147242941, now seen corresponding path program 1 times [2020-10-21 22:04:29,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:04:29,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350328944] [2020-10-21 22:04:29,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:04:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:04:29,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:04:29,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350328944] [2020-10-21 22:04:29,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:04:29,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:04:29,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028398126] [2020-10-21 22:04:29,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 22:04:29,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:04:29,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 22:04:29,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:04:29,358 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-21 22:04:29,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:04:29,393 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-21 22:04:29,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 22:04:29,395 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-21 22:04:29,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:04:29,414 INFO L225 Difference]: With dead ends: 362 [2020-10-21 22:04:29,414 INFO L226 Difference]: Without dead ends: 298 [2020-10-21 22:04:29,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:04:29,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-21 22:04:29,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-21 22:04:29,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-21 22:04:29,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-21 22:04:29,499 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-21 22:04:29,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:04:29,500 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-21 22:04:29,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 22:04:29,500 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-21 22:04:29,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 22:04:29,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:04:29,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:04:29,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:04:29,503 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:04:29,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:04:29,503 INFO L82 PathProgramCache]: Analyzing trace with hash 269557700, now seen corresponding path program 1 times [2020-10-21 22:04:29,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:04:29,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303401024] [2020-10-21 22:04:29,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:04:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:04:29,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:04:29,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303401024] [2020-10-21 22:04:29,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:04:29,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:04:29,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293347686] [2020-10-21 22:04:29,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:04:29,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:04:29,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:04:29,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:04:29,640 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-21 22:04:29,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:04:29,660 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-21 22:04:29,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:04:29,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-21 22:04:29,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:04:29,663 INFO L225 Difference]: With dead ends: 217 [2020-10-21 22:04:29,663 INFO L226 Difference]: Without dead ends: 217 [2020-10-21 22:04:29,664 INFO L677 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 [2020-10-21 22:04:29,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-21 22:04:29,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-21 22:04:29,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-21 22:04:29,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-21 22:04:29,685 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-21 22:04:29,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:04:29,685 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-21 22:04:29,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:04:29,685 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-21 22:04:29,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:04:29,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:04:29,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:04:29,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:04:29,688 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:04:29,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:04:29,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1876534856, now seen corresponding path program 1 times [2020-10-21 22:04:29,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:04:29,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067436247] [2020-10-21 22:04:29,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:04:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:04:29,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:04:29,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067436247] [2020-10-21 22:04:29,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:04:29,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:04:29,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074150243] [2020-10-21 22:04:29,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:04:29,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:04:29,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:04:29,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:04:29,758 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-21 22:04:29,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:04:29,792 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-21 22:04:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:04:29,794 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 22:04:29,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:04:29,795 INFO L225 Difference]: With dead ends: 136 [2020-10-21 22:04:29,796 INFO L226 Difference]: Without dead ends: 136 [2020-10-21 22:04:29,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:04:29,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-21 22:04:29,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-21 22:04:29,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-21 22:04:29,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-21 22:04:29,831 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-21 22:04:29,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:04:29,832 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-21 22:04:29,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:04:29,832 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-21 22:04:29,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:04:29,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:04:29,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:04:29,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:04:29,834 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:04:29,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:04:29,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1466848330, now seen corresponding path program 1 times [2020-10-21 22:04:29,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:04:29,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340060231] [2020-10-21 22:04:29,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:04:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:04:29,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:04:29,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340060231] [2020-10-21 22:04:29,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:04:29,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:04:29,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717337699] [2020-10-21 22:04:29,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:04:29,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:04:29,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:04:29,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:04:29,896 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-21 22:04:29,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:04:29,922 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-21 22:04:29,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:04:29,922 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-21 22:04:29,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:04:29,923 INFO L225 Difference]: With dead ends: 109 [2020-10-21 22:04:29,923 INFO L226 Difference]: Without dead ends: 109 [2020-10-21 22:04:29,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:04:29,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-21 22:04:29,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-21 22:04:29,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-21 22:04:29,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-21 22:04:29,929 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-21 22:04:29,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:04:29,930 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-21 22:04:29,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:04:29,930 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-21 22:04:29,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 22:04:29,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:04:29,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:04:29,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:04:29,932 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:04:29,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:04:29,933 INFO L82 PathProgramCache]: Analyzing trace with hash -182122517, now seen corresponding path program 1 times [2020-10-21 22:04:29,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:04:29,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291314118] [2020-10-21 22:04:29,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:04:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:04:29,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:04:29,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291314118] [2020-10-21 22:04:29,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:04:29,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:04:29,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353003494] [2020-10-21 22:04:29,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:04:29,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:04:29,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:04:29,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:04:29,999 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-21 22:04:30,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:04:30,018 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-21 22:04:30,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:04:30,019 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 22:04:30,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:04:30,020 INFO L225 Difference]: With dead ends: 135 [2020-10-21 22:04:30,020 INFO L226 Difference]: Without dead ends: 85 [2020-10-21 22:04:30,020 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 [2020-10-21 22:04:30,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-21 22:04:30,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-21 22:04:30,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-21 22:04:30,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-21 22:04:30,025 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-10-21 22:04:30,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:04:30,025 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-21 22:04:30,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:04:30,026 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-21 22:04:30,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 22:04:30,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:04:30,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:04:30,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:04:30,027 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:04:30,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:04:30,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1711993673, now seen corresponding path program 2 times [2020-10-21 22:04:30,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:04:30,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060801340] [2020-10-21 22:04:30,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:04:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:04:30,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:04:30,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060801340] [2020-10-21 22:04:30,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:04:30,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:04:30,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864637870] [2020-10-21 22:04:30,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:04:30,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:04:30,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:04:30,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:04:30,093 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-10-21 22:04:30,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:04:30,111 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-10-21 22:04:30,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:04:30,111 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 22:04:30,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:04:30,112 INFO L225 Difference]: With dead ends: 99 [2020-10-21 22:04:30,112 INFO L226 Difference]: Without dead ends: 37 [2020-10-21 22:04:30,112 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 [2020-10-21 22:04:30,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-21 22:04:30,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-21 22:04:30,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-21 22:04:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-21 22:04:30,115 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-21 22:04:30,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:04:30,115 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-21 22:04:30,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:04:30,116 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-21 22:04:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 22:04:30,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:04:30,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:04:30,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:04:30,117 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:04:30,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:04:30,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1121061337, now seen corresponding path program 3 times [2020-10-21 22:04:30,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:04:30,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006240511] [2020-10-21 22:04:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:04:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:04:30,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:04:30,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006240511] [2020-10-21 22:04:30,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:04:30,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:04:30,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339464813] [2020-10-21 22:04:30,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:04:30,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:04:30,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:04:30,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:04:30,176 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-10-21 22:04:30,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:04:30,192 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-21 22:04:30,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:04:30,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 22:04:30,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:04:30,193 INFO L225 Difference]: With dead ends: 36 [2020-10-21 22:04:30,193 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:04:30,194 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 [2020-10-21 22:04:30,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:04:30,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:04:30,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:04:30,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:04:30,195 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 22:04:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:04:30,195 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:04:30,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:04:30,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:04:30,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:04:30,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:04:30,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:04:30 BasicIcfg [2020-10-21 22:04:30,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:04:30,202 INFO L168 Benchmark]: Toolchain (without parser) took 4481.55 ms. Allocated memory was 146.3 MB in the beginning and 245.4 MB in the end (delta: 99.1 MB). Free memory was 100.3 MB in the beginning and 162.2 MB in the end (delta: -61.9 MB). Peak memory consumption was 37.2 MB. Max. memory is 7.1 GB. [2020-10-21 22:04:30,202 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 22:04:30,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.00 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 99.5 MB in the beginning and 158.7 MB in the end (delta: -59.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:04:30,204 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.71 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:04:30,205 INFO L168 Benchmark]: Boogie Preprocessor took 28.41 ms. Allocated memory is still 203.4 MB. Free memory was 156.0 MB in the beginning and 154.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:04:30,206 INFO L168 Benchmark]: RCFGBuilder took 499.51 ms. Allocated memory is still 203.4 MB. Free memory was 154.7 MB in the beginning and 130.9 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-21 22:04:30,207 INFO L168 Benchmark]: TraceAbstraction took 3178.15 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 130.3 MB in the beginning and 162.2 MB in the end (delta: -32.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:04:30,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.00 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 99.5 MB in the beginning and 158.7 MB in the end (delta: -59.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.71 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.41 ms. Allocated memory is still 203.4 MB. Free memory was 156.0 MB in the beginning and 154.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 499.51 ms. Allocated memory is still 203.4 MB. Free memory was 154.7 MB in the beginning and 130.9 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3178.15 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 130.3 MB in the beginning and 162.2 MB in the end (delta: -32.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 936 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 80 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 84 PlacesBefore, 32 PlacesAfterwards, 77 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 3066 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, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 128 SDtfs, 64 SDslu, 159 SDs, 0 SdLazy, 50 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2488 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...