/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:03:38,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:03:38,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:03:38,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:03:38,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:03:38,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:03:38,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:03:38,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:03:38,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:03:38,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:03:38,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:03:38,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:03:38,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:03:38,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:03:38,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:03:38,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:03:38,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:03:38,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:03:38,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:03:38,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:03:38,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:03:38,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:03:38,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:03:38,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:03:38,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:03:38,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:03:38,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:03:38,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:03:38,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:03:38,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:03:38,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:03:38,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:03:38,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:03:38,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:03:38,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:03:38,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:03:38,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:03:38,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:03:38,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:03:38,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:03:38,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:03:38,578 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:03:38,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:03:38,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:03:38,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:03:38,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:03:38,604 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:03:38,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:03:38,605 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:03:38,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:03:38,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:03:38,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:03:38,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:03:38,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:03:38,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:03:38,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:03:38,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:03:38,607 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:03:38,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:03:38,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:03:38,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:03:38,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:03:38,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:03:38,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:03:38,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:03:38,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:03:38,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:03:38,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:03:38,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:03:38,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:03:38,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:03:38,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:03:38,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:03:38,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:03:38,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:03:38,971 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:03:38,973 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:03:38,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-10-21 22:03:39,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faed6de7d/c8b8f946639d4a05bb73a1ccc8919f05/FLAG026368190 [2020-10-21 22:03:39,598 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:03:39,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-10-21 22:03:39,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faed6de7d/c8b8f946639d4a05bb73a1ccc8919f05/FLAG026368190 [2020-10-21 22:03:39,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faed6de7d/c8b8f946639d4a05bb73a1ccc8919f05 [2020-10-21 22:03:39,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:03:39,919 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:03:39,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:03:39,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:03:39,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:03:39,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:03:39" (1/1) ... [2020-10-21 22:03:39,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@403d3b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:39, skipping insertion in model container [2020-10-21 22:03:39,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:03:39" (1/1) ... [2020-10-21 22:03:39,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:03:40,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:03:40,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:03:40,430 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:03:40,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:03:40,594 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:03:40,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:40 WrapperNode [2020-10-21 22:03:40,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:03:40,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:03:40,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:03:40,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:03:40,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:40" (1/1) ... [2020-10-21 22:03:40,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:40" (1/1) ... [2020-10-21 22:03:40,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:03:40,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:03:40,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:03:40,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:03:40,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:40" (1/1) ... [2020-10-21 22:03:40,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:40" (1/1) ... [2020-10-21 22:03:40,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:40" (1/1) ... [2020-10-21 22:03:40,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:40" (1/1) ... [2020-10-21 22:03:40,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:40" (1/1) ... [2020-10-21 22:03:40,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:40" (1/1) ... [2020-10-21 22:03:40,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:40" (1/1) ... [2020-10-21 22:03:40,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:03:40,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:03:40,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:03:40,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:03:40,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:40" (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 [2020-10-21 22:03:40,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:03:40,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:03:40,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:03:40,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:03:40,811 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 22:03:40,811 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 22:03:40,811 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 22:03:40,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 22:03:40,812 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 22:03:40,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 22:03:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:03:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:03:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:03:40,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:03:40,815 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:03:41,207 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:03:41,208 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 22:03:41,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:03:41 BoogieIcfgContainer [2020-10-21 22:03:41,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:03:41,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:03:41,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:03:41,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:03:41,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:03:39" (1/3) ... [2020-10-21 22:03:41,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c1eb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:03:41, skipping insertion in model container [2020-10-21 22:03:41,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:03:40" (2/3) ... [2020-10-21 22:03:41,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c1eb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:03:41, skipping insertion in model container [2020-10-21 22:03:41,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:03:41" (3/3) ... [2020-10-21 22:03:41,220 INFO L111 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2020-10-21 22:03:41,233 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:03:41,233 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:03:41,242 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:03:41,243 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:03:41,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,276 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,276 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,277 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,277 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,277 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,278 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,278 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,278 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,279 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,283 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,284 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,290 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,291 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:03:41,300 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:03:41,315 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 22:03:41,336 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:03:41,337 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:03:41,337 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:03:41,337 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:03:41,337 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:03:41,337 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:03:41,338 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:03:41,338 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:03:41,352 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:03:41,354 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-21 22:03:41,356 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-21 22:03:41,358 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 169 flow [2020-10-21 22:03:41,407 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2020-10-21 22:03:41,408 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:03:41,418 INFO L80 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-21 22:03:41,420 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-10-21 22:03:43,114 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-21 22:03:43,238 INFO L131 LiptonReduction]: Checked pairs total: 2469 [2020-10-21 22:03:43,238 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-10-21 22:03:43,246 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-21 22:03:43,272 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-10-21 22:03:43,274 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-10-21 22:03:43,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:03:43,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:03:43,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:03:43,284 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:03:43,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:03:43,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1935178246, now seen corresponding path program 1 times [2020-10-21 22:03:43,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:03:43,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382926627] [2020-10-21 22:03:43,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:03:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:03:43,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:03:43,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382926627] [2020-10-21 22:03:43,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:03:43,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:03:43,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138661779] [2020-10-21 22:03:43,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 22:03:43,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:03:43,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 22:03:43,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:03:43,516 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-10-21 22:03:43,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:03:43,548 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-10-21 22:03:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 22:03:43,553 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-21 22:03:43,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:03:43,573 INFO L225 Difference]: With dead ends: 274 [2020-10-21 22:03:43,574 INFO L226 Difference]: Without dead ends: 226 [2020-10-21 22:03:43,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:03:43,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-21 22:03:43,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-21 22:03:43,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-21 22:03:43,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-10-21 22:03:43,641 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-10-21 22:03:43,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:03:43,643 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-10-21 22:03:43,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 22:03:43,643 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-10-21 22:03:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 22:03:43,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:03:43,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:03:43,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:03:43,646 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:03:43,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:03:43,646 INFO L82 PathProgramCache]: Analyzing trace with hash -139024564, now seen corresponding path program 1 times [2020-10-21 22:03:43,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:03:43,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889463314] [2020-10-21 22:03:43,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:03:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:03:43,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:03:43,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889463314] [2020-10-21 22:03:43,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:03:43,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:03:43,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658660686] [2020-10-21 22:03:43,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:03:43,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:03:43,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:03:43,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:03:43,773 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 3 states. [2020-10-21 22:03:43,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:03:43,795 INFO L93 Difference]: Finished difference Result 172 states and 418 transitions. [2020-10-21 22:03:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:03:43,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-21 22:03:43,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:03:43,798 INFO L225 Difference]: With dead ends: 172 [2020-10-21 22:03:43,799 INFO L226 Difference]: Without dead ends: 172 [2020-10-21 22:03:43,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:03:43,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-21 22:03:43,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-10-21 22:03:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-21 22:03:43,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 418 transitions. [2020-10-21 22:03:43,816 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 418 transitions. Word has length 9 [2020-10-21 22:03:43,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:03:43,816 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 418 transitions. [2020-10-21 22:03:43,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:03:43,816 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 418 transitions. [2020-10-21 22:03:43,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:03:43,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:03:43,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:03:43,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:03:43,818 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:03:43,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:03:43,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1635413154, now seen corresponding path program 1 times [2020-10-21 22:03:43,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:03:43,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618358508] [2020-10-21 22:03:43,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:03:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:03:43,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:03:43,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618358508] [2020-10-21 22:03:43,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:03:43,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:03:43,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489801536] [2020-10-21 22:03:43,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:03:43,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:03:43,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:03:43,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:03:43,936 INFO L87 Difference]: Start difference. First operand 172 states and 418 transitions. Second operand 4 states. [2020-10-21 22:03:43,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:03:43,984 INFO L93 Difference]: Finished difference Result 109 states and 229 transitions. [2020-10-21 22:03:43,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:03:43,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 22:03:43,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:03:43,988 INFO L225 Difference]: With dead ends: 109 [2020-10-21 22:03:43,988 INFO L226 Difference]: Without dead ends: 109 [2020-10-21 22:03:43,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:03:43,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-21 22:03:43,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-21 22:03:43,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-21 22:03:44,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 229 transitions. [2020-10-21 22:03:44,012 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 229 transitions. Word has length 11 [2020-10-21 22:03:44,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:03:44,013 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 229 transitions. [2020-10-21 22:03:44,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:03:44,015 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 229 transitions. [2020-10-21 22:03:44,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 22:03:44,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:03:44,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:03:44,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:03:44,017 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:03:44,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:03:44,021 INFO L82 PathProgramCache]: Analyzing trace with hash 395532943, now seen corresponding path program 1 times [2020-10-21 22:03:44,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:03:44,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892471951] [2020-10-21 22:03:44,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:03:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:03:44,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:03:44,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892471951] [2020-10-21 22:03:44,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:03:44,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:03:44,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892808028] [2020-10-21 22:03:44,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:03:44,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:03:44,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:03:44,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:03:44,099 INFO L87 Difference]: Start difference. First operand 109 states and 229 transitions. Second operand 5 states. [2020-10-21 22:03:44,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:03:44,125 INFO L93 Difference]: Finished difference Result 85 states and 181 transitions. [2020-10-21 22:03:44,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:03:44,126 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-21 22:03:44,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:03:44,127 INFO L225 Difference]: With dead ends: 85 [2020-10-21 22:03:44,127 INFO L226 Difference]: Without dead ends: 85 [2020-10-21 22:03:44,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:03:44,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-21 22:03:44,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-21 22:03:44,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-21 22:03:44,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 181 transitions. [2020-10-21 22:03:44,134 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 181 transitions. Word has length 14 [2020-10-21 22:03:44,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:03:44,135 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 181 transitions. [2020-10-21 22:03:44,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:03:44,135 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 181 transitions. [2020-10-21 22:03:44,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 22:03:44,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:03:44,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:03:44,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:03:44,137 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:03:44,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:03:44,137 INFO L82 PathProgramCache]: Analyzing trace with hash 781717809, now seen corresponding path program 1 times [2020-10-21 22:03:44,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:03:44,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346323256] [2020-10-21 22:03:44,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:03:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:03:44,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:03:44,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346323256] [2020-10-21 22:03:44,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:03:44,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:03:44,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191825112] [2020-10-21 22:03:44,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:03:44,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:03:44,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:03:44,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:03:44,233 INFO L87 Difference]: Start difference. First operand 85 states and 181 transitions. Second operand 4 states. [2020-10-21 22:03:44,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:03:44,261 INFO L93 Difference]: Finished difference Result 111 states and 227 transitions. [2020-10-21 22:03:44,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:03:44,262 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-21 22:03:44,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:03:44,263 INFO L225 Difference]: With dead ends: 111 [2020-10-21 22:03:44,263 INFO L226 Difference]: Without dead ends: 61 [2020-10-21 22:03:44,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:03:44,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-21 22:03:44,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-21 22:03:44,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-21 22:03:44,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 113 transitions. [2020-10-21 22:03:44,268 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 113 transitions. Word has length 17 [2020-10-21 22:03:44,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:03:44,268 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 113 transitions. [2020-10-21 22:03:44,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:03:44,269 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 113 transitions. [2020-10-21 22:03:44,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 22:03:44,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:03:44,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:03:44,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:03:44,270 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:03:44,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:03:44,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1128654861, now seen corresponding path program 2 times [2020-10-21 22:03:44,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:03:44,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287049441] [2020-10-21 22:03:44,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:03:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:03:44,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:03:44,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287049441] [2020-10-21 22:03:44,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:03:44,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:03:44,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187125132] [2020-10-21 22:03:44,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:03:44,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:03:44,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:03:44,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:03:44,333 INFO L87 Difference]: Start difference. First operand 61 states and 113 transitions. Second operand 5 states. [2020-10-21 22:03:44,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:03:44,364 INFO L93 Difference]: Finished difference Result 81 states and 148 transitions. [2020-10-21 22:03:44,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:03:44,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-21 22:03:44,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:03:44,366 INFO L225 Difference]: With dead ends: 81 [2020-10-21 22:03:44,366 INFO L226 Difference]: Without dead ends: 55 [2020-10-21 22:03:44,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:03:44,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-21 22:03:44,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-21 22:03:44,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-21 22:03:44,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 101 transitions. [2020-10-21 22:03:44,370 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 101 transitions. Word has length 17 [2020-10-21 22:03:44,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:03:44,371 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 101 transitions. [2020-10-21 22:03:44,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:03:44,371 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 101 transitions. [2020-10-21 22:03:44,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 22:03:44,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:03:44,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:03:44,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:03:44,372 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:03:44,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:03:44,373 INFO L82 PathProgramCache]: Analyzing trace with hash -842301437, now seen corresponding path program 3 times [2020-10-21 22:03:44,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:03:44,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961713361] [2020-10-21 22:03:44,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:03:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:03:44,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:03:44,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961713361] [2020-10-21 22:03:44,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:03:44,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:03:44,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123101733] [2020-10-21 22:03:44,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:03:44,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:03:44,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:03:44,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:03:44,428 INFO L87 Difference]: Start difference. First operand 55 states and 101 transitions. Second operand 5 states. [2020-10-21 22:03:44,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:03:44,451 INFO L93 Difference]: Finished difference Result 54 states and 100 transitions. [2020-10-21 22:03:44,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:03:44,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-21 22:03:44,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:03:44,451 INFO L225 Difference]: With dead ends: 54 [2020-10-21 22:03:44,452 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:03:44,452 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 [2020-10-21 22:03:44,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:03:44,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:03:44,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:03:44,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:03:44,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-21 22:03:44,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:03:44,453 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:03:44,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:03:44,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:03:44,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:03:44,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:03:44,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:03:44 BasicIcfg [2020-10-21 22:03:44,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:03:44,460 INFO L168 Benchmark]: Toolchain (without parser) took 4545.95 ms. Allocated memory was 139.5 MB in the beginning and 247.5 MB in the end (delta: 108.0 MB). Free memory was 101.3 MB in the beginning and 158.9 MB in the end (delta: -57.6 MB). Peak memory consumption was 50.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:03:44,461 INFO L168 Benchmark]: CDTParser took 2.98 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 22:03:44,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.75 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 156.4 MB in the end (delta: -56.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-21 22:03:44,463 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.66 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 154.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:03:44,463 INFO L168 Benchmark]: Boogie Preprocessor took 56.87 ms. Allocated memory is still 202.4 MB. Free memory was 154.4 MB in the beginning and 153.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:03:44,464 INFO L168 Benchmark]: RCFGBuilder took 467.62 ms. Allocated memory is still 202.4 MB. Free memory was 152.4 MB in the beginning and 129.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:03:44,465 INFO L168 Benchmark]: TraceAbstraction took 3245.61 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 128.5 MB in the beginning and 158.9 MB in the end (delta: -30.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-10-21 22:03:44,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.98 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 676.75 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 156.4 MB in the end (delta: -56.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 87.66 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 154.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.87 ms. Allocated memory is still 202.4 MB. Free memory was 154.4 MB in the beginning and 153.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 467.62 ms. Allocated memory is still 202.4 MB. Free memory was 152.4 MB in the beginning and 129.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3245.61 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 128.5 MB in the beginning and 158.9 MB in the end (delta: -30.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 947 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 59 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 84 PlacesBefore, 31 PlacesAfterwards, 77 TransitionsBefore, 22 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 2469 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 120 SDtfs, 82 SDslu, 160 SDs, 0 SdLazy, 59 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 2940 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...