/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/safe035_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 00:10:59,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 00:10:59,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 00:10:59,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 00:10:59,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 00:10:59,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 00:10:59,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 00:10:59,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 00:10:59,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 00:10:59,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 00:10:59,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 00:10:59,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 00:10:59,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 00:10:59,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 00:10:59,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 00:10:59,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 00:10:59,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 00:10:59,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 00:10:59,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 00:10:59,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 00:10:59,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 00:10:59,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 00:10:59,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 00:10:59,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 00:10:59,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-15 00:10:59,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-15 00:10:59,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-15 00:10:59,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-15 00:10:59,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-15 00:10:59,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-15 00:10:59,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 00:10:59,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 00:10:59,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 00:10:59,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 00:10:59,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 00:10:59,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 00:10:59,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 00:10:59,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 00:10:59,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 00:10:59,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 00:10:59,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 00:10:59,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-15 00:10:59,268 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 00:10:59,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 00:10:59,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 00:10:59,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 00:10:59,271 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 00:10:59,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 00:10:59,272 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 00:10:59,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 00:10:59,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 00:10:59,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 00:10:59,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 00:10:59,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 00:10:59,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 00:10:59,274 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 00:10:59,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 00:10:59,275 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 00:10:59,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 00:10:59,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 00:10:59,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 00:10:59,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 00:10:59,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 00:10:59,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 00:10:59,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 00:10:59,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-15 00:10:59,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 00:10:59,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 00:10:59,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 00:10:59,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 00:10:59,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-15 00:10:59,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-15 00:10:59,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 00:10:59,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 00:10:59,743 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 00:10:59,744 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 00:10:59,745 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 00:10:59,746 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2020-09-15 00:10:59,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b01c02db/4b924d66316448bb916b30de642ea6da/FLAG66806fddc [2020-09-15 00:11:00,521 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 00:11:00,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2020-09-15 00:11:00,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b01c02db/4b924d66316448bb916b30de642ea6da/FLAG66806fddc [2020-09-15 00:11:00,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b01c02db/4b924d66316448bb916b30de642ea6da [2020-09-15 00:11:00,829 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 00:11:00,835 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 00:11:00,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 00:11:00,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 00:11:00,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 00:11:00,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:11:00" (1/1) ... [2020-09-15 00:11:00,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ddd3536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:00, skipping insertion in model container [2020-09-15 00:11:00,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:11:00" (1/1) ... [2020-09-15 00:11:00,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 00:11:00,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 00:11:01,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 00:11:01,418 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 00:11:01,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 00:11:01,593 INFO L208 MainTranslator]: Completed translation [2020-09-15 00:11:01,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:01 WrapperNode [2020-09-15 00:11:01,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 00:11:01,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 00:11:01,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 00:11:01,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 00:11:01,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:01" (1/1) ... [2020-09-15 00:11:01,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:01" (1/1) ... [2020-09-15 00:11:01,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 00:11:01,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 00:11:01,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 00:11:01,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 00:11:01,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:01" (1/1) ... [2020-09-15 00:11:01,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:01" (1/1) ... [2020-09-15 00:11:01,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:01" (1/1) ... [2020-09-15 00:11:01,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:01" (1/1) ... [2020-09-15 00:11:01,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:01" (1/1) ... [2020-09-15 00:11:01,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:01" (1/1) ... [2020-09-15 00:11:01,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:01" (1/1) ... [2020-09-15 00:11:01,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 00:11:01,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 00:11:01,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 00:11:01,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 00:11:01,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 00:11:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 00:11:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 00:11:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 00:11:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 00:11:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 00:11:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 00:11:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 00:11:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 00:11:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 00:11:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 00:11:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 00:11:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 00:11:01,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 00:11:01,787 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 00:11:02,158 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 00:11:02,158 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 00:11:02,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:11:02 BoogieIcfgContainer [2020-09-15 00:11:02,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 00:11:02,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 00:11:02,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 00:11:02,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 00:11:02,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:11:00" (1/3) ... [2020-09-15 00:11:02,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763cd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:11:02, skipping insertion in model container [2020-09-15 00:11:02,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:11:01" (2/3) ... [2020-09-15 00:11:02,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763cd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:11:02, skipping insertion in model container [2020-09-15 00:11:02,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:11:02" (3/3) ... [2020-09-15 00:11:02,174 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_tso.oepc.i [2020-09-15 00:11:02,184 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 00:11:02,184 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-15 00:11:02,194 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 00:11:02,195 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 00:11:02,225 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,226 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,226 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,226 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,227 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,227 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,228 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,228 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,230 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,230 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,236 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,236 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,237 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,237 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,245 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,245 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,246 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,246 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,250 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,250 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,251 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,251 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 00:11:02,277 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-15 00:11:02,303 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 00:11:02,303 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 00:11:02,304 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-15 00:11:02,304 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-15 00:11:02,304 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 00:11:02,304 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 00:11:02,304 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 00:11:02,304 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 00:11:02,321 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-15 00:11:02,323 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-15 00:11:02,374 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-15 00:11:02,375 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 00:11:02,381 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 00:11:02,385 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-15 00:11:02,410 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-15 00:11:02,410 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 00:11:02,412 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-15 00:11:02,414 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-15 00:11:02,416 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-15 00:11:04,250 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2414 [2020-09-15 00:11:04,250 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-09-15 00:11:04,255 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-09-15 00:11:04,282 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-15 00:11:04,285 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-15 00:11:04,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-15 00:11:04,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:11:04,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:11:04,296 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:11:04,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:11:04,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-09-15 00:11:04,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:11:04,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913569953] [2020-09-15 00:11:04,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:11:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:11:04,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:11:04,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913569953] [2020-09-15 00:11:04,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:11:04,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 00:11:04,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057631831] [2020-09-15 00:11:04,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 00:11:04,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:11:04,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 00:11:04,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:11:04,660 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-15 00:11:04,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:11:04,710 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-09-15 00:11:04,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 00:11:04,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-15 00:11:04,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:11:04,732 INFO L225 Difference]: With dead ends: 266 [2020-09-15 00:11:04,733 INFO L226 Difference]: Without dead ends: 202 [2020-09-15 00:11:04,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:11:04,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-15 00:11:04,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-09-15 00:11:04,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-15 00:11:04,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-09-15 00:11:04,807 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-09-15 00:11:04,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:11:04,809 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-09-15 00:11:04,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 00:11:04,809 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-09-15 00:11:04,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-15 00:11:04,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:11:04,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:11:04,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 00:11:04,812 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:11:04,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:11:04,812 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-09-15 00:11:04,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:11:04,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563801098] [2020-09-15 00:11:04,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:11:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:11:04,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:11:04,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563801098] [2020-09-15 00:11:04,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:11:04,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 00:11:04,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885825285] [2020-09-15 00:11:04,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 00:11:04,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:11:04,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 00:11:04,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:11:04,891 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-09-15 00:11:04,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:11:04,925 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-09-15 00:11:04,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 00:11:04,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-15 00:11:04,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:11:04,928 INFO L225 Difference]: With dead ends: 266 [2020-09-15 00:11:04,928 INFO L226 Difference]: Without dead ends: 140 [2020-09-15 00:11:04,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 00:11:04,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-15 00:11:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-09-15 00:11:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-15 00:11:04,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-09-15 00:11:04,943 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-09-15 00:11:04,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:11:04,943 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-09-15 00:11:04,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 00:11:04,943 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-09-15 00:11:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 00:11:04,945 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:11:04,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:11:04,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 00:11:04,945 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:11:04,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:11:04,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-09-15 00:11:04,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:11:04,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539922665] [2020-09-15 00:11:04,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:11:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:11:05,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:11:05,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539922665] [2020-09-15 00:11:05,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:11:05,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 00:11:05,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510445620] [2020-09-15 00:11:05,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 00:11:05,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:11:05,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 00:11:05,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 00:11:05,080 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-09-15 00:11:05,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:11:05,137 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-09-15 00:11:05,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 00:11:05,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-15 00:11:05,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:11:05,140 INFO L225 Difference]: With dead ends: 165 [2020-09-15 00:11:05,140 INFO L226 Difference]: Without dead ends: 113 [2020-09-15 00:11:05,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:11:05,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-09-15 00:11:05,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-09-15 00:11:05,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-09-15 00:11:05,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-09-15 00:11:05,150 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-09-15 00:11:05,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:11:05,150 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-09-15 00:11:05,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 00:11:05,151 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-09-15 00:11:05,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 00:11:05,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:11:05,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:11:05,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 00:11:05,152 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:11:05,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:11:05,153 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-09-15 00:11:05,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:11:05,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390087797] [2020-09-15 00:11:05,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:11:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:11:05,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:11:05,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390087797] [2020-09-15 00:11:05,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:11:05,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:11:05,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588933883] [2020-09-15 00:11:05,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 00:11:05,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:11:05,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 00:11:05,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:11:05,273 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-09-15 00:11:05,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:11:05,321 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-09-15 00:11:05,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-15 00:11:05,321 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-15 00:11:05,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:11:05,322 INFO L225 Difference]: With dead ends: 111 [2020-09-15 00:11:05,323 INFO L226 Difference]: Without dead ends: 80 [2020-09-15 00:11:05,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-15 00:11:05,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-15 00:11:05,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-15 00:11:05,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-15 00:11:05,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-09-15 00:11:05,330 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-09-15 00:11:05,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:11:05,330 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-09-15 00:11:05,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 00:11:05,330 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-09-15 00:11:05,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 00:11:05,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:11:05,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:11:05,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 00:11:05,332 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:11:05,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:11:05,332 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-09-15 00:11:05,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:11:05,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730904194] [2020-09-15 00:11:05,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:11:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:11:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:11:05,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730904194] [2020-09-15 00:11:05,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:11:05,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-15 00:11:05,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048787354] [2020-09-15 00:11:05,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-15 00:11:05,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:11:05,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-15 00:11:05,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-15 00:11:05,491 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-09-15 00:11:05,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:11:05,551 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-09-15 00:11:05,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 00:11:05,552 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-09-15 00:11:05,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:11:05,553 INFO L225 Difference]: With dead ends: 75 [2020-09-15 00:11:05,553 INFO L226 Difference]: Without dead ends: 66 [2020-09-15 00:11:05,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-15 00:11:05,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-15 00:11:05,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-15 00:11:05,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-15 00:11:05,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-09-15 00:11:05,558 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-09-15 00:11:05,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:11:05,558 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-09-15 00:11:05,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-15 00:11:05,558 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-09-15 00:11:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 00:11:05,559 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:11:05,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:11:05,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 00:11:05,560 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:11:05,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:11:05,561 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-09-15 00:11:05,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:11:05,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313094048] [2020-09-15 00:11:05,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:11:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:11:05,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:11:05,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313094048] [2020-09-15 00:11:05,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:11:05,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:11:05,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321233589] [2020-09-15 00:11:05,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 00:11:05,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:11:05,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 00:11:05,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 00:11:05,636 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-09-15 00:11:05,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:11:05,665 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-09-15 00:11:05,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 00:11:05,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-15 00:11:05,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:11:05,667 INFO L225 Difference]: With dead ends: 85 [2020-09-15 00:11:05,667 INFO L226 Difference]: Without dead ends: 48 [2020-09-15 00:11:05,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 00:11:05,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-15 00:11:05,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-15 00:11:05,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-15 00:11:05,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-09-15 00:11:05,680 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-09-15 00:11:05,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:11:05,681 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-09-15 00:11:05,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 00:11:05,681 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-09-15 00:11:05,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 00:11:05,682 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:11:05,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:11:05,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 00:11:05,682 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:11:05,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:11:05,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-09-15 00:11:05,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:11:05,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078753766] [2020-09-15 00:11:05,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:11:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:11:05,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:11:05,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078753766] [2020-09-15 00:11:05,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:11:05,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:11:05,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672688552] [2020-09-15 00:11:05,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 00:11:05,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:11:05,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 00:11:05,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 00:11:05,778 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-09-15 00:11:05,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:11:05,805 INFO L93 Difference]: Finished difference Result 73 states and 130 transitions. [2020-09-15 00:11:05,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 00:11:05,806 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-15 00:11:05,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:11:05,806 INFO L225 Difference]: With dead ends: 73 [2020-09-15 00:11:05,806 INFO L226 Difference]: Without dead ends: 42 [2020-09-15 00:11:05,807 INFO L675 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 [2020-09-15 00:11:05,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-15 00:11:05,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-15 00:11:05,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-15 00:11:05,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions. [2020-09-15 00:11:05,810 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 17 [2020-09-15 00:11:05,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:11:05,810 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 71 transitions. [2020-09-15 00:11:05,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 00:11:05,811 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2020-09-15 00:11:05,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 00:11:05,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 00:11:05,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 00:11:05,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-15 00:11:05,812 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 00:11:05,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 00:11:05,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1323635892, now seen corresponding path program 3 times [2020-09-15 00:11:05,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 00:11:05,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954892443] [2020-09-15 00:11:05,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 00:11:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 00:11:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 00:11:05,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954892443] [2020-09-15 00:11:05,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 00:11:05,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 00:11:05,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622160689] [2020-09-15 00:11:05,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 00:11:05,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 00:11:05,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 00:11:05,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 00:11:05,890 INFO L87 Difference]: Start difference. First operand 42 states and 71 transitions. Second operand 4 states. [2020-09-15 00:11:05,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 00:11:05,901 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions. [2020-09-15 00:11:05,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 00:11:05,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-15 00:11:05,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 00:11:05,902 INFO L225 Difference]: With dead ends: 41 [2020-09-15 00:11:05,902 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 00:11:05,902 INFO L675 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 [2020-09-15 00:11:05,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 00:11:05,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 00:11:05,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 00:11:05,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 00:11:05,903 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-15 00:11:05,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 00:11:05,904 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 00:11:05,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 00:11:05,904 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 00:11:05,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 00:11:05,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-15 00:11:05,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:11:05 BasicIcfg [2020-09-15 00:11:05,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 00:11:05,923 INFO L168 Benchmark]: Toolchain (without parser) took 5089.95 ms. Allocated memory was 140.5 MB in the beginning and 246.4 MB in the end (delta: 105.9 MB). Free memory was 102.0 MB in the beginning and 135.9 MB in the end (delta: -33.9 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB. [2020-09-15 00:11:05,924 INFO L168 Benchmark]: CDTParser took 1.49 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-15 00:11:05,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.14 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 157.4 MB in the end (delta: -56.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-15 00:11:05,928 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.57 ms. Allocated memory is still 203.4 MB. Free memory was 157.4 MB in the beginning and 155.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 00:11:05,929 INFO L168 Benchmark]: Boogie Preprocessor took 32.48 ms. Allocated memory is still 203.4 MB. Free memory was 155.4 MB in the beginning and 154.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-15 00:11:05,931 INFO L168 Benchmark]: RCFGBuilder took 464.57 ms. Allocated memory is still 203.4 MB. Free memory was 154.1 MB in the beginning and 131.5 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-15 00:11:05,932 INFO L168 Benchmark]: TraceAbstraction took 3752.86 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 130.8 MB in the beginning and 135.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. [2020-09-15 00:11:05,940 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.49 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 760.14 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 157.4 MB in the end (delta: -56.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 69.57 ms. Allocated memory is still 203.4 MB. Free memory was 157.4 MB in the beginning and 155.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.48 ms. Allocated memory is still 203.4 MB. Free memory was 155.4 MB in the beginning and 154.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 464.57 ms. Allocated memory is still 203.4 MB. Free memory was 154.1 MB in the beginning and 131.5 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3752.86 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 130.8 MB in the beginning and 135.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 643 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2414 CheckedPairsTotal, 56 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 156 SDtfs, 123 SDslu, 193 SDs, 0 SdLazy, 117 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 3220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...