/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:10:57,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:10:57,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:10:57,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:10:57,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:10:57,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:10:57,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:10:57,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:10:57,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:10:57,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:10:57,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:10:57,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:10:57,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:10:57,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:10:57,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:10:57,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:10:57,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:10:57,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:10:57,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:10:57,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:10:57,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:10:57,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:10:57,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:10:57,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:10:57,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:10:57,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:10:57,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:10:57,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:10:57,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:10:57,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:10:57,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:10:57,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:10:57,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:10:57,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:10:57,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:10:57,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:10:57,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:10:57,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:10:57,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:10:57,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:10:57,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:10:57,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:10:57,429 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:10:57,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:10:57,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:10:57,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:10:57,432 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:10:57,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:10:57,432 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:10:57,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:10:57,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:10:57,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:10:57,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:10:57,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:10:57,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:10:57,435 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:10:57,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:10:57,435 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:10:57,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:10:57,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:10:57,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:10:57,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:10:57,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:10:57,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:10:57,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:10:57,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:10:57,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:10:57,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:10:57,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:10:57,438 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:10:57,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:10:57,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:10:57,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:10:57,742 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:10:57,745 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:10:57,746 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:10:57,747 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2020-10-16 12:10:57,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dadd2ad05/f0e06a06ff394e3c9dbc4ed8d6091c91/FLAGd19a5cac2 [2020-10-16 12:10:58,377 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:10:58,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2020-10-16 12:10:58,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dadd2ad05/f0e06a06ff394e3c9dbc4ed8d6091c91/FLAGd19a5cac2 [2020-10-16 12:10:58,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dadd2ad05/f0e06a06ff394e3c9dbc4ed8d6091c91 [2020-10-16 12:10:58,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:10:58,665 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:10:58,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:10:58,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:10:58,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:10:58,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:10:58" (1/1) ... [2020-10-16 12:10:58,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63304c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:58, skipping insertion in model container [2020-10-16 12:10:58,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:10:58" (1/1) ... [2020-10-16 12:10:58,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:10:58,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:10:59,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:10:59,275 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:10:59,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:10:59,431 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:10:59,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:59 WrapperNode [2020-10-16 12:10:59,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:10:59,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:10:59,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:10:59,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:10:59,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:59" (1/1) ... [2020-10-16 12:10:59,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:59" (1/1) ... [2020-10-16 12:10:59,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:10:59,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:10:59,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:10:59,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:10:59,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:59" (1/1) ... [2020-10-16 12:10:59,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:59" (1/1) ... [2020-10-16 12:10:59,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:59" (1/1) ... [2020-10-16 12:10:59,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:59" (1/1) ... [2020-10-16 12:10:59,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:59" (1/1) ... [2020-10-16 12:10:59,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:59" (1/1) ... [2020-10-16 12:10:59,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:59" (1/1) ... [2020-10-16 12:10:59,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:10:59,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:10:59,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:10:59,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:10:59,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:59" (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 [2020-10-16 12:10:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:10:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:10:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:10:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:10:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:10:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:10:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:10:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:10:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:10:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:10:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 12:10:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 12:10:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:10:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:10:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:10:59,582 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:10:59,984 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:10:59,985 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 12:10:59,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:10:59 BoogieIcfgContainer [2020-10-16 12:10:59,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:10:59,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:10:59,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:10:59,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:10:59,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:10:58" (1/3) ... [2020-10-16 12:10:59,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce4619c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:10:59, skipping insertion in model container [2020-10-16 12:10:59,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:10:59" (2/3) ... [2020-10-16 12:10:59,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce4619c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:10:59, skipping insertion in model container [2020-10-16 12:10:59,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:10:59" (3/3) ... [2020-10-16 12:10:59,998 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2020-10-16 12:11:00,011 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:11:00,012 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:11:00,021 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 12:11:00,022 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:11:00,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,057 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,058 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,062 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,062 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,062 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,064 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,064 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,064 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,064 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,065 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,065 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,069 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,070 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,070 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,071 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,078 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,078 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,081 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,081 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,087 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,087 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,087 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,088 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:00,090 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:11:00,104 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 12:11:00,128 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:11:00,129 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:11:00,129 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:11:00,129 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:11:00,129 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:11:00,129 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:11:00,130 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:11:00,130 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:11:00,145 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:11:00,146 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-16 12:11:00,149 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-16 12:11:00,151 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-10-16 12:11:00,199 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-16 12:11:00,200 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:11:00,206 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-16 12:11:00,210 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-16 12:11:01,590 INFO L132 LiptonReduction]: Checked pairs total: 3047 [2020-10-16 12:11:01,590 INFO L134 LiptonReduction]: Total number of compositions: 64 [2020-10-16 12:11:01,597 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-16 12:11:01,658 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-16 12:11:01,660 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-16 12:11:01,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:11:01,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:01,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:01,672 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:01,678 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-10-16 12:11:01,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:01,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354861971] [2020-10-16 12:11:01,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:01,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:01,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354861971] [2020-10-16 12:11:01,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:01,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:11:01,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032971918] [2020-10-16 12:11:01,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 12:11:01,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:01,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 12:11:01,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 12:11:01,927 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-16 12:11:01,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:01,977 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-16 12:11:01,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 12:11:01,978 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-16 12:11:01,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:02,007 INFO L225 Difference]: With dead ends: 850 [2020-10-16 12:11:02,007 INFO L226 Difference]: Without dead ends: 706 [2020-10-16 12:11:02,009 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 [2020-10-16 12:11:02,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-16 12:11:02,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-16 12:11:02,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-16 12:11:02,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-16 12:11:02,136 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-16 12:11:02,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:02,137 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-16 12:11:02,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 12:11:02,137 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-16 12:11:02,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:11:02,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:02,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:02,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:11:02,146 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:02,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:02,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-10-16 12:11:02,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:02,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119809648] [2020-10-16 12:11:02,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:02,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:02,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119809648] [2020-10-16 12:11:02,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:02,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:11:02,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880964257] [2020-10-16 12:11:02,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:11:02,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:02,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:11:02,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:11:02,309 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-16 12:11:02,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:02,355 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-10-16 12:11:02,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:11:02,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 12:11:02,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:02,363 INFO L225 Difference]: With dead ends: 778 [2020-10-16 12:11:02,363 INFO L226 Difference]: Without dead ends: 634 [2020-10-16 12:11:02,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:11:02,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-16 12:11:02,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-16 12:11:02,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-16 12:11:02,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-10-16 12:11:02,402 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-10-16 12:11:02,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:02,402 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-10-16 12:11:02,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:11:02,402 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-10-16 12:11:02,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:11:02,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:02,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:02,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:11:02,411 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:02,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:02,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-10-16 12:11:02,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:02,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580940891] [2020-10-16 12:11:02,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:02,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:02,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580940891] [2020-10-16 12:11:02,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:02,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:11:02,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704480143] [2020-10-16 12:11:02,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:11:02,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:02,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:11:02,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:11:02,541 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-10-16 12:11:02,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:02,605 INFO L93 Difference]: Finished difference Result 814 states and 2703 transitions. [2020-10-16 12:11:02,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:11:02,606 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 12:11:02,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:02,610 INFO L225 Difference]: With dead ends: 814 [2020-10-16 12:11:02,610 INFO L226 Difference]: Without dead ends: 394 [2020-10-16 12:11:02,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:11:02,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-16 12:11:02,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-16 12:11:02,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-16 12:11:02,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1266 transitions. [2020-10-16 12:11:02,627 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1266 transitions. Word has length 12 [2020-10-16 12:11:02,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:02,628 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1266 transitions. [2020-10-16 12:11:02,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:11:02,628 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1266 transitions. [2020-10-16 12:11:02,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:11:02,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:02,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:02,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:11:02,630 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:02,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:02,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1921114608, now seen corresponding path program 1 times [2020-10-16 12:11:02,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:02,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175586845] [2020-10-16 12:11:02,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:02,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:02,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175586845] [2020-10-16 12:11:02,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:02,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:11:02,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730567003] [2020-10-16 12:11:02,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:11:02,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:02,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:11:02,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:11:02,711 INFO L87 Difference]: Start difference. First operand 394 states and 1266 transitions. Second operand 4 states. [2020-10-16 12:11:02,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:02,738 INFO L93 Difference]: Finished difference Result 430 states and 1332 transitions. [2020-10-16 12:11:02,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:11:02,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 12:11:02,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:02,742 INFO L225 Difference]: With dead ends: 430 [2020-10-16 12:11:02,742 INFO L226 Difference]: Without dead ends: 358 [2020-10-16 12:11:02,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:11:02,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-16 12:11:02,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-16 12:11:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-16 12:11:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-10-16 12:11:02,757 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-10-16 12:11:02,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:02,757 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-10-16 12:11:02,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:11:02,757 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-10-16 12:11:02,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:11:02,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:02,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:02,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:11:02,759 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:02,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:02,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-10-16 12:11:02,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:02,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905327609] [2020-10-16 12:11:02,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:02,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905327609] [2020-10-16 12:11:02,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:02,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:11:02,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951325353] [2020-10-16 12:11:02,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:11:02,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:02,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:11:02,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:11:02,820 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-10-16 12:11:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:02,876 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-10-16 12:11:02,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:11:02,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 12:11:02,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:02,879 INFO L225 Difference]: With dead ends: 496 [2020-10-16 12:11:02,879 INFO L226 Difference]: Without dead ends: 262 [2020-10-16 12:11:02,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:11:02,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-16 12:11:02,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-16 12:11:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-16 12:11:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-10-16 12:11:02,889 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-10-16 12:11:02,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:02,890 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-10-16 12:11:02,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:11:02,890 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-10-16 12:11:02,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 12:11:02,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:02,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:02,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:11:02,891 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:02,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:02,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-10-16 12:11:02,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:02,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272142136] [2020-10-16 12:11:02,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:02,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:02,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272142136] [2020-10-16 12:11:02,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:02,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:11:02,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182955121] [2020-10-16 12:11:02,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:11:02,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:02,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:11:02,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:11:02,945 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-10-16 12:11:02,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:02,985 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-10-16 12:11:02,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:11:02,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-16 12:11:02,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:02,988 INFO L225 Difference]: With dead ends: 319 [2020-10-16 12:11:02,988 INFO L226 Difference]: Without dead ends: 238 [2020-10-16 12:11:02,988 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 [2020-10-16 12:11:02,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-16 12:11:02,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-16 12:11:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-16 12:11:02,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-10-16 12:11:02,997 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-10-16 12:11:02,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:02,997 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-10-16 12:11:02,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:11:02,997 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-10-16 12:11:02,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 12:11:02,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:02,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:02,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:11:02,999 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:02,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:02,999 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-10-16 12:11:02,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:03,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417629712] [2020-10-16 12:11:03,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:03,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:03,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417629712] [2020-10-16 12:11:03,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:03,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:11:03,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358768363] [2020-10-16 12:11:03,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:11:03,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:03,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:11:03,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:11:03,058 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-10-16 12:11:03,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:03,110 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-10-16 12:11:03,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:11:03,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-16 12:11:03,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:03,112 INFO L225 Difference]: With dead ends: 247 [2020-10-16 12:11:03,112 INFO L226 Difference]: Without dead ends: 182 [2020-10-16 12:11:03,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:11:03,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-16 12:11:03,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-16 12:11:03,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-16 12:11:03,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-10-16 12:11:03,119 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-10-16 12:11:03,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:03,119 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-10-16 12:11:03,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:11:03,119 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-10-16 12:11:03,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:11:03,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:03,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:03,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:11:03,121 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:03,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:03,121 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-10-16 12:11:03,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:03,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321797898] [2020-10-16 12:11:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:03,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:03,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321797898] [2020-10-16 12:11:03,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:03,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:11:03,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132636169] [2020-10-16 12:11:03,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:11:03,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:03,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:11:03,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:11:03,181 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-10-16 12:11:03,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:03,242 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-10-16 12:11:03,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:11:03,243 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-16 12:11:03,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:03,244 INFO L225 Difference]: With dead ends: 165 [2020-10-16 12:11:03,244 INFO L226 Difference]: Without dead ends: 132 [2020-10-16 12:11:03,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:11:03,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-16 12:11:03,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-16 12:11:03,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-16 12:11:03,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-10-16 12:11:03,250 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-10-16 12:11:03,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:03,250 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-10-16 12:11:03,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:11:03,251 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-10-16 12:11:03,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:11:03,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:03,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:03,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:11:03,252 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:03,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:03,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-10-16 12:11:03,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:03,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179613242] [2020-10-16 12:11:03,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:03,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179613242] [2020-10-16 12:11:03,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:03,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:11:03,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134991524] [2020-10-16 12:11:03,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:11:03,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:03,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:11:03,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:11:03,317 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-10-16 12:11:03,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:03,385 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-10-16 12:11:03,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:11:03,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-16 12:11:03,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:03,387 INFO L225 Difference]: With dead ends: 121 [2020-10-16 12:11:03,387 INFO L226 Difference]: Without dead ends: 112 [2020-10-16 12:11:03,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:11:03,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-16 12:11:03,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-16 12:11:03,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-16 12:11:03,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-16 12:11:03,391 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-10-16 12:11:03,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:03,392 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-16 12:11:03,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:11:03,392 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-16 12:11:03,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 12:11:03,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:03,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:03,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:11:03,393 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:03,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:03,393 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-10-16 12:11:03,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:03,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587997659] [2020-10-16 12:11:03,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:03,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587997659] [2020-10-16 12:11:03,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:03,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:11:03,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885902793] [2020-10-16 12:11:03,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:11:03,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:03,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:11:03,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:11:03,469 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-10-16 12:11:03,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:03,503 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-10-16 12:11:03,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:11:03,504 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-16 12:11:03,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:03,505 INFO L225 Difference]: With dead ends: 146 [2020-10-16 12:11:03,505 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 12:11:03,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:11:03,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 12:11:03,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-16 12:11:03,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-16 12:11:03,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-10-16 12:11:03,507 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-10-16 12:11:03,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:03,508 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-10-16 12:11:03,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:11:03,508 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-10-16 12:11:03,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 12:11:03,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:03,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:03,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:11:03,509 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:03,510 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-10-16 12:11:03,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:03,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654331758] [2020-10-16 12:11:03,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:03,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:03,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654331758] [2020-10-16 12:11:03,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:03,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:11:03,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331780358] [2020-10-16 12:11:03,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:11:03,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:03,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:11:03,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:11:03,558 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-10-16 12:11:03,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:03,585 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-10-16 12:11:03,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:11:03,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-16 12:11:03,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:03,586 INFO L225 Difference]: With dead ends: 51 [2020-10-16 12:11:03,586 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:11:03,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:11:03,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:11:03,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:11:03,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:11:03,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:11:03,587 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-16 12:11:03,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:03,588 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:11:03,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:11:03,588 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:11:03,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:11:03,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:11:03,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:11:03 BasicIcfg [2020-10-16 12:11:03,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:11:03,595 INFO L168 Benchmark]: Toolchain (without parser) took 4929.24 ms. Allocated memory was 141.0 MB in the beginning and 284.2 MB in the end (delta: 143.1 MB). Free memory was 102.4 MB in the beginning and 225.5 MB in the end (delta: -123.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:03,596 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:11:03,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.67 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 161.1 MB in the end (delta: -58.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:03,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.78 ms. Allocated memory is still 204.5 MB. Free memory was 161.1 MB in the beginning and 158.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:03,598 INFO L168 Benchmark]: Boogie Preprocessor took 26.84 ms. Allocated memory is still 204.5 MB. Free memory was 158.5 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:03,599 INFO L168 Benchmark]: RCFGBuilder took 477.86 ms. Allocated memory is still 204.5 MB. Free memory was 157.2 MB in the beginning and 132.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:03,600 INFO L168 Benchmark]: TraceAbstraction took 3602.46 ms. Allocated memory was 204.5 MB in the beginning and 284.2 MB in the end (delta: 79.7 MB). Free memory was 132.2 MB in the beginning and 225.5 MB in the end (delta: -93.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:11:03,603 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.67 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 161.1 MB in the end (delta: -58.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.78 ms. Allocated memory is still 204.5 MB. Free memory was 161.1 MB in the beginning and 158.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.84 ms. Allocated memory is still 204.5 MB. Free memory was 158.5 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 477.86 ms. Allocated memory is still 204.5 MB. Free memory was 157.2 MB in the beginning and 132.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3602.46 ms. Allocated memory was 204.5 MB in the beginning and 284.2 MB in the end (delta: 79.7 MB). Free memory was 132.2 MB in the beginning and 225.5 MB in the end (delta: -93.3 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 959 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 83 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 93 PlacesBefore, 39 PlacesAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 3047 MoverChecksTotal - 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 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 267 SDtfs, 301 SDslu, 479 SDs, 0 SdLazy, 217 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 7360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...