/usr/bin/java -Xmx16000000000 -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 0.1.25-11af1e5 [2020-10-11 15:11:38,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:11:38,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:11:38,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:11:38,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:11:38,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:11:38,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:11:38,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:11:38,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:11:38,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:11:38,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:11:38,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:11:38,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:11:38,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:11:38,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:11:38,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:11:38,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:11:38,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:11:38,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:11:38,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:11:38,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:11:38,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:11:38,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:11:38,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:11:38,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 15:11:38,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 15:11:38,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 15:11:38,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 15:11:38,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 15:11:38,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 15:11:38,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:11:38,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:11:38,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:11:38,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:11:38,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:11:38,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:11:38,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:11:38,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:11:38,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:11:38,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:11:38,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:11:38,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 15:11:38,310 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:11:38,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:11:38,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:11:38,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:11:38,311 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:11:38,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:11:38,312 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:11:38,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:11:38,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:11:38,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:11:38,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:11:38,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:11:38,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:11:38,313 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:11:38,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:11:38,314 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:11:38,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:11:38,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:11:38,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:11:38,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:11:38,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:11:38,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:11:38,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:11:38,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:11:38,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:11:38,316 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:11:38,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:11:38,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:11:38,316 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:11:38,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:11:38,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:11:38,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:11:38,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:11:38,615 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:11:38,621 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:11:38,622 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2020-10-11 15:11:38,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0471f2f4d/a8cf9a392a234d16baf7b10147b1b501/FLAG5aac65f8e [2020-10-11 15:11:39,213 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:11:39,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.oepc.i [2020-10-11 15:11:39,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0471f2f4d/a8cf9a392a234d16baf7b10147b1b501/FLAG5aac65f8e [2020-10-11 15:11:39,469 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0471f2f4d/a8cf9a392a234d16baf7b10147b1b501 [2020-10-11 15:11:39,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:11:39,479 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:11:39,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:11:39,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:11:39,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:11:39,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:11:39" (1/1) ... [2020-10-11 15:11:39,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61d18a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:39, skipping insertion in model container [2020-10-11 15:11:39,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:11:39" (1/1) ... [2020-10-11 15:11:39,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:11:39,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:11:40,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:11:40,053 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:11:40,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:11:40,214 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:11:40,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:40 WrapperNode [2020-10-11 15:11:40,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:11:40,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:11:40,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:11:40,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:11:40,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:40" (1/1) ... [2020-10-11 15:11:40,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:40" (1/1) ... [2020-10-11 15:11:40,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:11:40,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:11:40,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:11:40,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:11:40,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:40" (1/1) ... [2020-10-11 15:11:40,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:40" (1/1) ... [2020-10-11 15:11:40,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:40" (1/1) ... [2020-10-11 15:11:40,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:40" (1/1) ... [2020-10-11 15:11:40,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:40" (1/1) ... [2020-10-11 15:11:40,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:40" (1/1) ... [2020-10-11 15:11:40,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:40" (1/1) ... [2020-10-11 15:11:40,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:11:40,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:11:40,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:11:40,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:11:40,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:11:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:11:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:11:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:11:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:11:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:11:40,345 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:11:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:11:40,345 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:11:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:11:40,346 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:11:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:11:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:11:40,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:11:40,348 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:11:40,686 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:11:40,686 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:11:40,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:11:40 BoogieIcfgContainer [2020-10-11 15:11:40,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:11:40,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:11:40,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:11:40,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:11:40,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:11:39" (1/3) ... [2020-10-11 15:11:40,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503c0048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:11:40, skipping insertion in model container [2020-10-11 15:11:40,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:40" (2/3) ... [2020-10-11 15:11:40,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503c0048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:11:40, skipping insertion in model container [2020-10-11 15:11:40,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:11:40" (3/3) ... [2020-10-11 15:11:40,697 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.oepc.i [2020-10-11 15:11:40,708 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:11:40,708 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:11:40,715 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:11:40,716 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:11:40,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,742 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,743 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,744 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,744 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,744 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,745 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,745 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,745 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,746 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,746 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,746 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,746 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,747 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,747 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,751 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,751 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,751 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,757 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,757 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,761 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:40,776 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:11:40,795 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:11:40,796 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:11:40,796 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:11:40,796 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:11:40,796 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:11:40,796 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:11:40,796 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:11:40,797 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:11:40,809 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:11:40,812 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:11:40,814 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:11:40,816 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-11 15:11:40,859 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-11 15:11:40,859 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:11:40,864 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. [2020-10-11 15:11:40,867 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-11 15:11:42,341 INFO L132 LiptonReduction]: Checked pairs total: 2520 [2020-10-11 15:11:42,341 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-11 15:11:42,348 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-11 15:11:42,375 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-11 15:11:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-11 15:11:42,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:11:42,385 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:42,386 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:42,386 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:42,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:42,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-10-11 15:11:42,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:42,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661754230] [2020-10-11 15:11:42,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:42,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:42,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661754230] [2020-10-11 15:11:42,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:42,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:11:42,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083054707] [2020-10-11 15:11:42,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:11:42,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:42,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:11:42,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:42,632 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-11 15:11:42,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:42,674 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-10-11 15:11:42,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:11:42,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-11 15:11:42,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:42,691 INFO L225 Difference]: With dead ends: 266 [2020-10-11 15:11:42,691 INFO L226 Difference]: Without dead ends: 202 [2020-10-11 15:11:42,693 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:42,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-11 15:11:42,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-11 15:11:42,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-11 15:11:42,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-11 15:11:42,751 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-10-11 15:11:42,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:42,753 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-11 15:11:42,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:11:42,753 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-11 15:11:42,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:11:42,755 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:42,755 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:42,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:11:42,756 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:42,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:42,756 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-10-11 15:11:42,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:42,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770556148] [2020-10-11 15:11:42,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:42,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:42,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770556148] [2020-10-11 15:11:42,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:42,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:11:42,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221887240] [2020-10-11 15:11:42,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:11:42,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:42,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:11:42,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:42,837 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-11 15:11:42,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:42,856 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-10-11 15:11:42,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:11:42,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-11 15:11:42,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:42,858 INFO L225 Difference]: With dead ends: 266 [2020-10-11 15:11:42,859 INFO L226 Difference]: Without dead ends: 140 [2020-10-11 15:11:42,859 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:42,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-11 15:11:42,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-11 15:11:42,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-11 15:11:42,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-10-11 15:11:42,873 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-10-11 15:11:42,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:42,873 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-10-11 15:11:42,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:11:42,874 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-10-11 15:11:42,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:11:42,875 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:42,875 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:42,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:11:42,875 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:42,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:42,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-10-11 15:11:42,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:42,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436415078] [2020-10-11 15:11:42,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:42,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436415078] [2020-10-11 15:11:42,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:42,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:11:42,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975750937] [2020-10-11 15:11:42,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:42,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:42,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:42,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:42,973 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-10-11 15:11:43,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:43,008 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-10-11 15:11:43,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:11:43,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 15:11:43,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:43,010 INFO L225 Difference]: With dead ends: 165 [2020-10-11 15:11:43,010 INFO L226 Difference]: Without dead ends: 113 [2020-10-11 15:11:43,011 INFO L673 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 [2020-10-11 15:11:43,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-11 15:11:43,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-10-11 15:11:43,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-11 15:11:43,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-10-11 15:11:43,020 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-10-11 15:11:43,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:43,020 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-10-11 15:11:43,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-10-11 15:11:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:11:43,021 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:43,021 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:43,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:11:43,022 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:43,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:43,022 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-10-11 15:11:43,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:43,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429531888] [2020-10-11 15:11:43,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:43,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:43,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429531888] [2020-10-11 15:11:43,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:43,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:43,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364242374] [2020-10-11 15:11:43,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:11:43,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:43,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:11:43,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:43,097 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-10-11 15:11:43,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:43,143 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-10-11 15:11:43,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:11:43,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-11 15:11:43,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:43,144 INFO L225 Difference]: With dead ends: 111 [2020-10-11 15:11:43,144 INFO L226 Difference]: Without dead ends: 80 [2020-10-11 15:11:43,145 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:11:43,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-11 15:11:43,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-11 15:11:43,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-11 15:11:43,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-10-11 15:11:43,150 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-10-11 15:11:43,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:43,150 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-10-11 15:11:43,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:11:43,150 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-10-11 15:11:43,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:11:43,151 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:43,152 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:43,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:11:43,152 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:43,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:43,152 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-10-11 15:11:43,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:43,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927473292] [2020-10-11 15:11:43,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:43,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:43,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927473292] [2020-10-11 15:11:43,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:43,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:11:43,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727531676] [2020-10-11 15:11:43,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:11:43,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:43,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:11:43,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:11:43,230 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-10-11 15:11:43,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:43,277 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-10-11 15:11:43,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:11:43,277 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-11 15:11:43,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:43,278 INFO L225 Difference]: With dead ends: 75 [2020-10-11 15:11:43,278 INFO L226 Difference]: Without dead ends: 66 [2020-10-11 15:11:43,279 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:11:43,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-11 15:11:43,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-11 15:11:43,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-11 15:11:43,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-10-11 15:11:43,283 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-10-11 15:11:43,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:43,283 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-10-11 15:11:43,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:11:43,283 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-10-11 15:11:43,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:11:43,284 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:43,284 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:43,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:11:43,285 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:43,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:43,285 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-10-11 15:11:43,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:43,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263141605] [2020-10-11 15:11:43,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:43,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:43,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263141605] [2020-10-11 15:11:43,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:43,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:43,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083407360] [2020-10-11 15:11:43,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:43,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:43,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:43,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:43,335 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-10-11 15:11:43,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:43,364 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-10-11 15:11:43,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:11:43,364 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:11:43,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:43,365 INFO L225 Difference]: With dead ends: 85 [2020-10-11 15:11:43,365 INFO L226 Difference]: Without dead ends: 48 [2020-10-11 15:11:43,366 INFO L673 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 [2020-10-11 15:11:43,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-11 15:11:43,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-11 15:11:43,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-11 15:11:43,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-10-11 15:11:43,372 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-10-11 15:11:43,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:43,373 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-10-11 15:11:43,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:43,376 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-10-11 15:11:43,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:11:43,377 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:43,377 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:43,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:11:43,377 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:43,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:43,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-10-11 15:11:43,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:43,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241638681] [2020-10-11 15:11:43,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:43,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:43,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241638681] [2020-10-11 15:11:43,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:43,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:43,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480662473] [2020-10-11 15:11:43,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:43,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:43,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:43,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:43,444 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-10-11 15:11:43,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:43,462 INFO L93 Difference]: Finished difference Result 73 states and 130 transitions. [2020-10-11 15:11:43,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:11:43,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:11:43,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:43,463 INFO L225 Difference]: With dead ends: 73 [2020-10-11 15:11:43,463 INFO L226 Difference]: Without dead ends: 42 [2020-10-11 15:11:43,464 INFO L673 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 [2020-10-11 15:11:43,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-11 15:11:43,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-11 15:11:43,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-11 15:11:43,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions. [2020-10-11 15:11:43,466 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 17 [2020-10-11 15:11:43,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:43,466 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 71 transitions. [2020-10-11 15:11:43,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:43,467 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2020-10-11 15:11:43,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:11:43,467 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:43,467 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:43,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:11:43,468 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:43,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:43,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1323635892, now seen corresponding path program 3 times [2020-10-11 15:11:43,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:43,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837773289] [2020-10-11 15:11:43,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:43,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:43,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837773289] [2020-10-11 15:11:43,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:43,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:43,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608892050] [2020-10-11 15:11:43,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:43,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:43,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:43,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:43,500 INFO L87 Difference]: Start difference. First operand 42 states and 71 transitions. Second operand 4 states. [2020-10-11 15:11:43,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:43,509 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions. [2020-10-11 15:11:43,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:11:43,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:11:43,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:43,510 INFO L225 Difference]: With dead ends: 41 [2020-10-11 15:11:43,510 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:11:43,511 INFO L673 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 [2020-10-11 15:11:43,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:11:43,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:11:43,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:11:43,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:11:43,512 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-11 15:11:43,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:43,512 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:11:43,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:43,512 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:11:43,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:11:43,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:11:43,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:11:43 BasicIcfg [2020-10-11 15:11:43,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:11:43,519 INFO L168 Benchmark]: Toolchain (without parser) took 4039.09 ms. Allocated memory was 253.2 MB in the beginning and 374.3 MB in the end (delta: 121.1 MB). Free memory was 208.6 MB in the beginning and 235.5 MB in the end (delta: -26.9 MB). Peak memory consumption was 94.2 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:43,519 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:11:43,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.40 ms. Allocated memory was 253.2 MB in the beginning and 321.9 MB in the end (delta: 68.7 MB). Free memory was 208.6 MB in the beginning and 274.7 MB in the end (delta: -66.1 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:43,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.49 ms. Allocated memory is still 321.9 MB. Free memory is still 274.7 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:11:43,522 INFO L168 Benchmark]: Boogie Preprocessor took 24.49 ms. Allocated memory is still 321.9 MB. Free memory was 274.7 MB in the beginning and 272.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:43,522 INFO L168 Benchmark]: RCFGBuilder took 401.62 ms. Allocated memory is still 321.9 MB. Free memory was 272.2 MB in the beginning and 250.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:43,526 INFO L168 Benchmark]: TraceAbstraction took 2826.46 ms. Allocated memory was 321.9 MB in the beginning and 374.3 MB in the end (delta: 52.4 MB). Free memory was 247.9 MB in the beginning and 235.5 MB in the end (delta: 12.4 MB). Peak memory consumption was 64.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:43,529 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 734.40 ms. Allocated memory was 253.2 MB in the beginning and 321.9 MB in the end (delta: 68.7 MB). Free memory was 208.6 MB in the beginning and 274.7 MB in the end (delta: -66.1 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.49 ms. Allocated memory is still 321.9 MB. Free memory is still 274.7 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 24.49 ms. Allocated memory is still 321.9 MB. Free memory was 274.7 MB in the beginning and 272.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 401.62 ms. Allocated memory is still 321.9 MB. Free memory was 272.2 MB in the beginning and 250.4 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2826.46 ms. Allocated memory was 321.9 MB in the beginning and 374.3 MB in the end (delta: 52.4 MB). Free memory was 247.9 MB in the beginning and 235.5 MB in the end (delta: 12.4 MB). Peak memory consumption was 64.8 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 837 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 63 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 2520 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 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s 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...