/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:15:32,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:15:32,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:15:32,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:15:32,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:15:32,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:15:32,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:15:32,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:15:32,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:15:32,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:15:32,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:15:32,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:15:32,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:15:32,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:15:32,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:15:32,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:15:32,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:15:32,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:15:32,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:15:32,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:15:32,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:15:32,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:15:32,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:15:32,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:15:32,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:15:32,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:15:32,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:15:32,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:15:32,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:15:32,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:15:32,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:15:32,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:15:32,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:15:32,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:15:32,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:15:32,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:15:32,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:15:32,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:15:32,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:15:32,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:15:32,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:15:32,222 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:15:32,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:15:32,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:15:32,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:15:32,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:15:32,272 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:15:32,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:15:32,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:15:32,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:15:32,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:15:32,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:15:32,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:15:32,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:15:32,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:15:32,274 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:15:32,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:15:32,274 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:15:32,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:15:32,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:15:32,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:15:32,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:15:32,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:15:32,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:15:32,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:15:32,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:15:32,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:15:32,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:15:32,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:15:32,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:15:32,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:15:32,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:15:32,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:15:32,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:15:32,581 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:15:32,581 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:15:32,582 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-10-15 22:15:32,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f870fd0ff/2f69ad03c3e840898a340bbe64aa271a/FLAG7ca840666 [2020-10-15 22:15:33,153 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:15:33,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-10-15 22:15:33,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f870fd0ff/2f69ad03c3e840898a340bbe64aa271a/FLAG7ca840666 [2020-10-15 22:15:33,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f870fd0ff/2f69ad03c3e840898a340bbe64aa271a [2020-10-15 22:15:33,473 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:15:33,475 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:15:33,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:15:33,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:15:33,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:15:33,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:15:33" (1/1) ... [2020-10-15 22:15:33,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6ec508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:33, skipping insertion in model container [2020-10-15 22:15:33,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:15:33" (1/1) ... [2020-10-15 22:15:33,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:15:33,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:15:34,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:15:34,073 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:15:34,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:15:34,200 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:15:34,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:34 WrapperNode [2020-10-15 22:15:34,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:15:34,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:15:34,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:15:34,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:15:34,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:34" (1/1) ... [2020-10-15 22:15:34,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:34" (1/1) ... [2020-10-15 22:15:34,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:15:34,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:15:34,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:15:34,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:15:34,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:34" (1/1) ... [2020-10-15 22:15:34,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:34" (1/1) ... [2020-10-15 22:15:34,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:34" (1/1) ... [2020-10-15 22:15:34,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:34" (1/1) ... [2020-10-15 22:15:34,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:34" (1/1) ... [2020-10-15 22:15:34,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:34" (1/1) ... [2020-10-15 22:15:34,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:34" (1/1) ... [2020-10-15 22:15:34,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:15:34,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:15:34,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:15:34,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:15:34,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:34" (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 [2020-10-15 22:15:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:15:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:15:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:15:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:15:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:15:34,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:15:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:15:34,352 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:15:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:15:34,352 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:15:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 22:15:34,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 22:15:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:15:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:15:34,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:15:34,355 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:15:34,729 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:15:34,730 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:15:34,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:15:34 BoogieIcfgContainer [2020-10-15 22:15:34,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:15:34,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:15:34,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:15:34,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:15:34,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:15:33" (1/3) ... [2020-10-15 22:15:34,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681c2ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:15:34, skipping insertion in model container [2020-10-15 22:15:34,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:34" (2/3) ... [2020-10-15 22:15:34,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681c2ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:15:34, skipping insertion in model container [2020-10-15 22:15:34,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:15:34" (3/3) ... [2020-10-15 22:15:34,741 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2020-10-15 22:15:34,753 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:15:34,754 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:15:34,761 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:15:34,762 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:15:34,792 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,792 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,792 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,793 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,794 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,794 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,794 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,795 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,795 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,795 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,796 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,796 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,796 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,796 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,797 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,797 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,797 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,798 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,798 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,798 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,798 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,799 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,803 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,803 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,803 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,803 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,815 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,815 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,818 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,818 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,820 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,820 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,821 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,821 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:34,837 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 22:15:34,859 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:15:34,860 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:15:34,860 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:15:34,860 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:15:34,860 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:15:34,860 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:15:34,860 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:15:34,861 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:15:34,875 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:15:34,879 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-15 22:15:34,882 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-15 22:15:34,884 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-10-15 22:15:34,936 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-15 22:15:34,937 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:15:34,943 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-15 22:15:34,947 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-15 22:15:36,487 INFO L132 LiptonReduction]: Checked pairs total: 3047 [2020-10-15 22:15:36,488 INFO L134 LiptonReduction]: Total number of compositions: 64 [2020-10-15 22:15:36,495 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-15 22:15:36,580 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-15 22:15:36,583 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-15 22:15:36,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:15:36,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:36,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:36,619 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:36,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:36,626 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-10-15 22:15:36,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:36,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950789509] [2020-10-15 22:15:36,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:36,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950789509] [2020-10-15 22:15:36,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:36,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:15:36,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665638268] [2020-10-15 22:15:36,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 22:15:36,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:36,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 22:15:36,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:15:36,891 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-15 22:15:36,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:36,947 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-15 22:15:36,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 22:15:36,949 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-15 22:15:36,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:36,977 INFO L225 Difference]: With dead ends: 850 [2020-10-15 22:15:36,977 INFO L226 Difference]: Without dead ends: 706 [2020-10-15 22:15:36,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:15:37,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-15 22:15:37,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-15 22:15:37,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-15 22:15:37,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-15 22:15:37,095 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-15 22:15:37,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:37,097 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-15 22:15:37,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 22:15:37,097 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-15 22:15:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:15:37,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:37,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:37,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:15:37,100 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:37,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:37,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-10-15 22:15:37,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:37,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143915834] [2020-10-15 22:15:37,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:37,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143915834] [2020-10-15 22:15:37,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:37,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:15:37,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382410737] [2020-10-15 22:15:37,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:15:37,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:37,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:15:37,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:15:37,259 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-15 22:15:37,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:37,293 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-10-15 22:15:37,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:37,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 22:15:37,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:37,301 INFO L225 Difference]: With dead ends: 778 [2020-10-15 22:15:37,301 INFO L226 Difference]: Without dead ends: 634 [2020-10-15 22:15:37,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:37,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-15 22:15:37,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-15 22:15:37,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-15 22:15:37,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-10-15 22:15:37,335 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-10-15 22:15:37,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:37,335 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-10-15 22:15:37,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:15:37,335 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-10-15 22:15:37,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:15:37,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:37,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:37,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:15:37,339 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:37,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:37,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1607812272, now seen corresponding path program 1 times [2020-10-15 22:15:37,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:37,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907587399] [2020-10-15 22:15:37,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:37,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:37,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907587399] [2020-10-15 22:15:37,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:37,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:15:37,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144988469] [2020-10-15 22:15:37,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:37,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:37,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:37,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:37,419 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-10-15 22:15:37,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:37,487 INFO L93 Difference]: Finished difference Result 862 states and 2843 transitions. [2020-10-15 22:15:37,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:15:37,488 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-15 22:15:37,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:37,492 INFO L225 Difference]: With dead ends: 862 [2020-10-15 22:15:37,492 INFO L226 Difference]: Without dead ends: 466 [2020-10-15 22:15:37,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:15:37,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-15 22:15:37,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2020-10-15 22:15:37,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-10-15 22:15:37,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1482 transitions. [2020-10-15 22:15:37,510 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1482 transitions. Word has length 12 [2020-10-15 22:15:37,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:37,510 INFO L481 AbstractCegarLoop]: Abstraction has 466 states and 1482 transitions. [2020-10-15 22:15:37,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:37,510 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1482 transitions. [2020-10-15 22:15:37,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:15:37,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:37,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:37,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:15:37,513 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:37,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:37,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1203540713, now seen corresponding path program 1 times [2020-10-15 22:15:37,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:37,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000567155] [2020-10-15 22:15:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:37,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:37,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000567155] [2020-10-15 22:15:37,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:37,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:15:37,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430749472] [2020-10-15 22:15:37,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:15:37,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:37,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:15:37,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:15:37,607 INFO L87 Difference]: Start difference. First operand 466 states and 1482 transitions. Second operand 4 states. [2020-10-15 22:15:37,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:37,629 INFO L93 Difference]: Finished difference Result 502 states and 1548 transitions. [2020-10-15 22:15:37,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:37,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 22:15:37,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:37,633 INFO L225 Difference]: With dead ends: 502 [2020-10-15 22:15:37,633 INFO L226 Difference]: Without dead ends: 430 [2020-10-15 22:15:37,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:37,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-10-15 22:15:37,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-10-15 22:15:37,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-15 22:15:37,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1344 transitions. [2020-10-15 22:15:37,650 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1344 transitions. Word has length 13 [2020-10-15 22:15:37,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:37,650 INFO L481 AbstractCegarLoop]: Abstraction has 430 states and 1344 transitions. [2020-10-15 22:15:37,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:15:37,651 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1344 transitions. [2020-10-15 22:15:37,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:15:37,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:37,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:37,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:15:37,653 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:37,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:37,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1251334402, now seen corresponding path program 1 times [2020-10-15 22:15:37,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:37,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126165754] [2020-10-15 22:15:37,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:37,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126165754] [2020-10-15 22:15:37,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:37,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:15:37,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063221489] [2020-10-15 22:15:37,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:37,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:37,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:37,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:37,754 INFO L87 Difference]: Start difference. First operand 430 states and 1344 transitions. Second operand 5 states. [2020-10-15 22:15:37,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:37,821 INFO L93 Difference]: Finished difference Result 556 states and 1707 transitions. [2020-10-15 22:15:37,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:15:37,822 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 22:15:37,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:37,825 INFO L225 Difference]: With dead ends: 556 [2020-10-15 22:15:37,825 INFO L226 Difference]: Without dead ends: 262 [2020-10-15 22:15:37,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:15:37,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-15 22:15:37,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-15 22:15:37,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-15 22:15:37,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-10-15 22:15:37,836 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-10-15 22:15:37,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:37,836 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-10-15 22:15:37,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:37,836 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-10-15 22:15:37,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:15:37,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:37,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:37,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:15:37,838 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:37,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:37,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-10-15 22:15:37,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:37,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792171413] [2020-10-15 22:15:37,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:37,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:37,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792171413] [2020-10-15 22:15:37,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:37,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:15:37,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030783078] [2020-10-15 22:15:37,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:15:37,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:37,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:15:37,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:15:37,931 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-10-15 22:15:37,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:37,974 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-10-15 22:15:37,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:37,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 22:15:37,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:37,978 INFO L225 Difference]: With dead ends: 319 [2020-10-15 22:15:37,978 INFO L226 Difference]: Without dead ends: 238 [2020-10-15 22:15:37,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:37,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-15 22:15:37,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-15 22:15:37,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-15 22:15:37,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-10-15 22:15:37,988 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-10-15 22:15:37,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:37,988 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-10-15 22:15:37,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:15:37,989 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-10-15 22:15:37,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 22:15:37,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:37,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:37,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:15:37,991 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:37,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:37,991 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-10-15 22:15:37,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:37,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280046323] [2020-10-15 22:15:37,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:38,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:38,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280046323] [2020-10-15 22:15:38,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:38,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:15:38,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035822606] [2020-10-15 22:15:38,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:38,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:38,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:38,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:38,064 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-10-15 22:15:38,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:38,113 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-10-15 22:15:38,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:15:38,113 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-15 22:15:38,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:38,115 INFO L225 Difference]: With dead ends: 247 [2020-10-15 22:15:38,115 INFO L226 Difference]: Without dead ends: 182 [2020-10-15 22:15:38,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:15:38,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-15 22:15:38,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-15 22:15:38,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-15 22:15:38,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-10-15 22:15:38,122 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-10-15 22:15:38,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:38,122 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-10-15 22:15:38,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:38,123 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-10-15 22:15:38,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:15:38,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:38,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:38,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:15:38,124 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:38,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:38,124 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-10-15 22:15:38,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:38,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656052460] [2020-10-15 22:15:38,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:38,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:38,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656052460] [2020-10-15 22:15:38,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:38,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:15:38,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880741068] [2020-10-15 22:15:38,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:15:38,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:38,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:15:38,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:15:38,192 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-10-15 22:15:38,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:38,248 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-10-15 22:15:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:15:38,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 22:15:38,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:38,250 INFO L225 Difference]: With dead ends: 165 [2020-10-15 22:15:38,250 INFO L226 Difference]: Without dead ends: 132 [2020-10-15 22:15:38,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:15:38,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-15 22:15:38,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-15 22:15:38,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-15 22:15:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-10-15 22:15:38,255 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-10-15 22:15:38,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:38,256 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-10-15 22:15:38,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:15:38,256 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-10-15 22:15:38,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:15:38,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:38,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:38,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:15:38,258 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:38,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:38,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-10-15 22:15:38,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:38,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512394090] [2020-10-15 22:15:38,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:38,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:38,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512394090] [2020-10-15 22:15:38,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:38,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 22:15:38,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931294940] [2020-10-15 22:15:38,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:15:38,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:38,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:15:38,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:15:38,384 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-10-15 22:15:38,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:38,454 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-10-15 22:15:38,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 22:15:38,454 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:15:38,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:38,455 INFO L225 Difference]: With dead ends: 121 [2020-10-15 22:15:38,456 INFO L226 Difference]: Without dead ends: 112 [2020-10-15 22:15:38,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:15:38,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-15 22:15:38,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-15 22:15:38,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-15 22:15:38,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-15 22:15:38,460 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-10-15 22:15:38,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:38,461 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-15 22:15:38,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:15:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-15 22:15:38,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:15:38,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:38,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:38,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 22:15:38,462 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:38,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:38,462 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-10-15 22:15:38,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:38,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947843117] [2020-10-15 22:15:38,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:38,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:38,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947843117] [2020-10-15 22:15:38,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:38,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:15:38,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779683475] [2020-10-15 22:15:38,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:38,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:38,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:38,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:38,511 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-10-15 22:15:38,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:38,542 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-10-15 22:15:38,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:38,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 22:15:38,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:38,543 INFO L225 Difference]: With dead ends: 146 [2020-10-15 22:15:38,543 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 22:15:38,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:15:38,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 22:15:38,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-15 22:15:38,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-15 22:15:38,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-10-15 22:15:38,546 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-10-15 22:15:38,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:38,546 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-10-15 22:15:38,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:38,547 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-10-15 22:15:38,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:15:38,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:38,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:38,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 22:15:38,548 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:38,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:38,548 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-10-15 22:15:38,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:38,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019529957] [2020-10-15 22:15:38,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:38,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019529957] [2020-10-15 22:15:38,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:38,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:15:38,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413593666] [2020-10-15 22:15:38,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:38,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:38,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:38,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:38,590 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-10-15 22:15:38,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:38,611 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-10-15 22:15:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:38,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 22:15:38,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:38,612 INFO L225 Difference]: With dead ends: 51 [2020-10-15 22:15:38,612 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:15:38,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:15:38,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:15:38,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:15:38,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:15:38,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:15:38,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-15 22:15:38,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:38,614 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:15:38,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:38,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:15:38,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:15:38,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 22:15:38,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:15:38 BasicIcfg [2020-10-15 22:15:38,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:15:38,621 INFO L168 Benchmark]: Toolchain (without parser) took 5146.00 ms. Allocated memory was 252.7 MB in the beginning and 427.3 MB in the end (delta: 174.6 MB). Free memory was 207.9 MB in the beginning and 353.3 MB in the end (delta: -145.5 MB). Peak memory consumption was 29.1 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:38,622 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:15:38,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.27 ms. Allocated memory was 252.7 MB in the beginning and 319.3 MB in the end (delta: 66.6 MB). Free memory was 207.9 MB in the beginning and 270.2 MB in the end (delta: -62.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:38,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.92 ms. Allocated memory is still 319.3 MB. Free memory was 270.2 MB in the beginning and 267.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:38,624 INFO L168 Benchmark]: Boogie Preprocessor took 27.90 ms. Allocated memory is still 319.3 MB. Free memory was 267.7 MB in the beginning and 265.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:38,625 INFO L168 Benchmark]: RCFGBuilder took 451.65 ms. Allocated memory is still 319.3 MB. Free memory was 265.1 MB in the beginning and 240.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:38,626 INFO L168 Benchmark]: TraceAbstraction took 3884.67 ms. Allocated memory was 319.3 MB in the beginning and 427.3 MB in the end (delta: 108.0 MB). Free memory was 240.8 MB in the beginning and 353.3 MB in the end (delta: -112.6 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:15:38,630 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 725.27 ms. Allocated memory was 252.7 MB in the beginning and 319.3 MB in the end (delta: 66.6 MB). Free memory was 207.9 MB in the beginning and 270.2 MB in the end (delta: -62.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 50.92 ms. Allocated memory is still 319.3 MB. Free memory was 270.2 MB in the beginning and 267.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.90 ms. Allocated memory is still 319.3 MB. Free memory was 267.7 MB in the beginning and 265.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 451.65 ms. Allocated memory is still 319.3 MB. Free memory was 265.1 MB in the beginning and 240.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3884.67 ms. Allocated memory was 319.3 MB in the beginning and 427.3 MB in the end (delta: 108.0 MB). Free memory was 240.8 MB in the beginning and 353.3 MB in the end (delta: -112.6 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1256 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 14 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 115 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 93 PlacesBefore, 39 PlacesAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 3047 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 267 SDtfs, 301 SDslu, 479 SDs, 0 SdLazy, 217 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...