/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:26:23,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:26:23,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:26:23,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:26:23,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:26:23,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:26:23,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:26:23,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:26:23,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:26:23,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:26:23,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:26:23,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:26:23,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:26:23,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:26:23,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:26:23,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:26:23,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:26:23,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:26:23,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:26:23,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:26:23,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:26:23,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:26:23,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:26:23,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:26:23,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:26:23,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:26:23,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:26:23,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:26:23,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:26:23,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:26:23,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:26:23,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:26:23,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:26:23,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:26:23,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:26:23,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:26:23,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:26:23,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:26:23,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:26:23,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:26:23,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:26:23,574 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-NoLbe-Delay.epf [2020-11-12 06:26:23,630 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:26:23,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:26:23,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:26:23,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:26:23,633 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:26:23,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:26:23,633 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:26:23,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:26:23,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:26:23,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:26:23,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:26:23,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:26:23,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:26:23,635 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:26:23,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:26:23,635 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:26:23,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:26:23,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:26:23,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:26:23,636 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:26:23,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:26:23,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:26:23,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:26:23,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:26:23,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:26:23,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:26:23,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:26:23,638 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:26:23,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:26:23,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:26:23,639 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:26:24,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:26:24,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:26:24,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:26:24,059 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:26:24,060 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:26:24,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2020-11-12 06:26:24,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/793c1fbbe/a7302a6bc39a4ef6b9227e40eed70706/FLAG2aa9abf3d [2020-11-12 06:26:24,834 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:26:24,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2020-11-12 06:26:24,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/793c1fbbe/a7302a6bc39a4ef6b9227e40eed70706/FLAG2aa9abf3d [2020-11-12 06:26:25,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/793c1fbbe/a7302a6bc39a4ef6b9227e40eed70706 [2020-11-12 06:26:25,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:26:25,123 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:26:25,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:26:25,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:26:25,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:26:25,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:26:25" (1/1) ... [2020-11-12 06:26:25,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48bcf243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25, skipping insertion in model container [2020-11-12 06:26:25,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:26:25" (1/1) ... [2020-11-12 06:26:25,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:26:25,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:26:25,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:26:25,716 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:26:25,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:26:25,937 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:26:25,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25 WrapperNode [2020-11-12 06:26:25,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:26:25,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:26:25,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:26:25,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:26:25,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25" (1/1) ... [2020-11-12 06:26:25,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25" (1/1) ... [2020-11-12 06:26:26,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:26:26,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:26:26,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:26:26,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:26:26,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25" (1/1) ... [2020-11-12 06:26:26,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25" (1/1) ... [2020-11-12 06:26:26,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25" (1/1) ... [2020-11-12 06:26:26,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25" (1/1) ... [2020-11-12 06:26:26,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25" (1/1) ... [2020-11-12 06:26:26,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25" (1/1) ... [2020-11-12 06:26:26,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25" (1/1) ... [2020-11-12 06:26:26,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:26:26,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:26:26,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:26:26,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:26:26,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25" (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 [2020-11-12 06:26:26,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:26:26,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:26:26,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:26:26,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:26:26,217 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:26:26,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:26:26,218 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:26:26,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:26:26,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:26:26,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:26:26,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:26:26,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:26:26,221 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 06:26:26,734 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:26:26,734 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:26:26,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:26:26 BoogieIcfgContainer [2020-11-12 06:26:26,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:26:26,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:26:26,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:26:26,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:26:26,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:26:25" (1/3) ... [2020-11-12 06:26:26,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e1b012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:26:26, skipping insertion in model container [2020-11-12 06:26:26,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:26:25" (2/3) ... [2020-11-12 06:26:26,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e1b012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:26:26, skipping insertion in model container [2020-11-12 06:26:26,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:26:26" (3/3) ... [2020-11-12 06:26:26,747 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_pso.oepc.i [2020-11-12 06:26:26,764 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:26:26,764 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:26:26,768 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:26:26,770 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:26:26,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,807 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,807 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,808 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,808 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,810 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,810 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,811 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,811 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,815 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,815 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,816 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,816 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,825 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,825 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,825 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:26:26,828 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:26:26,842 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-12 06:26:26,869 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:26:26,869 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:26:26,869 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:26:26,869 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:26:26,869 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:26:26,870 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:26:26,870 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:26:26,870 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:26:26,883 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2020-11-12 06:26:26,982 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:27,261 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 276ms [2020-11-12 06:26:27,266 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:27,270 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 1321 states, 1216 states have (on average 1.305921052631579) internal successors, (1588), 1320 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:27,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 1321 states, 1216 states have (on average 1.305921052631579) internal successors, (1588), 1320 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:27,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-12 06:26:27,285 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:27,286 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:27,286 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:27,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:27,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1361290816, now seen corresponding path program 1 times [2020-11-12 06:26:27,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:27,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359569068] [2020-11-12 06:26:27,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:27,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:27,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359569068] [2020-11-12 06:26:27,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:27,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:26:27,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833752922] [2020-11-12 06:26:27,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:26:27,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:27,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:26:27,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:26:27,815 INFO L87 Difference]: Start difference. First operand has 1321 states, 1216 states have (on average 1.305921052631579) internal successors, (1588), 1320 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:28,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:28,187 INFO L93 Difference]: Finished difference Result 1116 states and 1219 transitions. [2020-11-12 06:26:28,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:26:28,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2020-11-12 06:26:28,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:28,209 INFO L225 Difference]: With dead ends: 1116 [2020-11-12 06:26:28,210 INFO L226 Difference]: Without dead ends: 532 [2020-11-12 06:26:28,219 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:26:28,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2020-11-12 06:26:28,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2020-11-12 06:26:28,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 499 states have (on average 1.2364729458917836) internal successors, (617), 531 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:28,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 617 transitions. [2020-11-12 06:26:28,311 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 617 transitions. Word has length 37 [2020-11-12 06:26:28,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:28,311 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 617 transitions. [2020-11-12 06:26:28,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:28,313 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 617 transitions. [2020-11-12 06:26:28,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 06:26:28,318 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:28,318 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:28,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:26:28,319 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:28,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:28,320 INFO L82 PathProgramCache]: Analyzing trace with hash -887889922, now seen corresponding path program 1 times [2020-11-12 06:26:28,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:28,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271938180] [2020-11-12 06:26:28,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:28,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:28,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271938180] [2020-11-12 06:26:28,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:28,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:26:28,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603197847] [2020-11-12 06:26:28,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:26:28,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:28,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:26:28,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:26:28,579 INFO L87 Difference]: Start difference. First operand 532 states and 617 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:28,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:28,844 INFO L93 Difference]: Finished difference Result 352 states and 409 transitions. [2020-11-12 06:26:28,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:26:28,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2020-11-12 06:26:28,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:28,848 INFO L225 Difference]: With dead ends: 352 [2020-11-12 06:26:28,848 INFO L226 Difference]: Without dead ends: 200 [2020-11-12 06:26:28,849 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 06:26:28,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-11-12 06:26:28,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2020-11-12 06:26:28,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 191 states have (on average 1.2146596858638743) internal successors, (232), 199 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:28,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 232 transitions. [2020-11-12 06:26:28,863 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 232 transitions. Word has length 41 [2020-11-12 06:26:28,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:28,864 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 232 transitions. [2020-11-12 06:26:28,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:28,864 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 232 transitions. [2020-11-12 06:26:28,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 06:26:28,866 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:28,866 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:28,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:26:28,867 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:28,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:28,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1160345054, now seen corresponding path program 1 times [2020-11-12 06:26:28,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:28,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719875023] [2020-11-12 06:26:28,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:29,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:29,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719875023] [2020-11-12 06:26:29,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:29,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:26:29,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815087825] [2020-11-12 06:26:29,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:26:29,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:29,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:26:29,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:26:29,103 INFO L87 Difference]: Start difference. First operand 200 states and 232 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:29,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:29,298 INFO L93 Difference]: Finished difference Result 298 states and 356 transitions. [2020-11-12 06:26:29,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:26:29,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-12 06:26:29,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:29,302 INFO L225 Difference]: With dead ends: 298 [2020-11-12 06:26:29,302 INFO L226 Difference]: Without dead ends: 184 [2020-11-12 06:26:29,303 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:26:29,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-12 06:26:29,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2020-11-12 06:26:29,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 175 states have (on average 1.217142857142857) internal successors, (213), 183 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 213 transitions. [2020-11-12 06:26:29,329 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 213 transitions. Word has length 45 [2020-11-12 06:26:29,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:29,330 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 213 transitions. [2020-11-12 06:26:29,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:29,332 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 213 transitions. [2020-11-12 06:26:29,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 06:26:29,334 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:26:29,334 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:26:29,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:26:29,334 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:26:29,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:26:29,335 INFO L82 PathProgramCache]: Analyzing trace with hash 177426048, now seen corresponding path program 2 times [2020-11-12 06:26:29,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:26:29,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506901186] [2020-11-12 06:26:29,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:26:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:26:29,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:26:29,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506901186] [2020-11-12 06:26:29,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:26:29,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:26:29,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470307232] [2020-11-12 06:26:29,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:26:29,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:26:29,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:26:29,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:26:29,525 INFO L87 Difference]: Start difference. First operand 184 states and 213 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:29,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:26:29,634 INFO L93 Difference]: Finished difference Result 148 states and 177 transitions. [2020-11-12 06:26:29,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:26:29,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-12 06:26:29,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:26:29,635 INFO L225 Difference]: With dead ends: 148 [2020-11-12 06:26:29,635 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:26:29,636 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:26:29,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:26:29,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:26:29,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:29,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:26:29,637 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-11-12 06:26:29,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:26:29,637 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:26:29,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:26:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:26:29,638 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:26:29,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:26:29,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:26:29 BasicIcfg [2020-11-12 06:26:29,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:26:29,649 INFO L168 Benchmark]: Toolchain (without parser) took 4528.58 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.6 MB in the beginning and 320.7 MB in the end (delta: -44.0 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:29,650 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 272.5 MB in the end (delta: 65.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:26:29,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 814.96 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 245.7 MB in the end (delta: 30.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:29,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.05 ms. Allocated memory is still 302.0 MB. Free memory was 245.7 MB in the beginning and 243.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:29,656 INFO L168 Benchmark]: Boogie Preprocessor took 56.83 ms. Allocated memory is still 302.0 MB. Free memory was 243.8 MB in the beginning and 242.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:29,662 INFO L168 Benchmark]: RCFGBuilder took 642.35 ms. Allocated memory is still 302.0 MB. Free memory was 242.5 MB in the beginning and 265.3 MB in the end (delta: -22.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:29,663 INFO L168 Benchmark]: TraceAbstraction took 2906.30 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 265.3 MB in the beginning and 320.7 MB in the end (delta: -55.4 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.0 GB. [2020-11-12 06:26:29,674 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 272.5 MB in the end (delta: 65.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 814.96 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 245.7 MB in the end (delta: 30.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 91.05 ms. Allocated memory is still 302.0 MB. Free memory was 245.7 MB in the beginning and 243.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 56.83 ms. Allocated memory is still 302.0 MB. Free memory was 243.8 MB in the beginning and 242.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 642.35 ms. Allocated memory is still 302.0 MB. Free memory was 242.5 MB in the beginning and 265.3 MB in the end (delta: -22.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2906.30 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 265.3 MB in the beginning and 320.7 MB in the end (delta: -55.4 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 202 SDtfs, 217 SDslu, 783 SDs, 0 SdLazy, 92 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1321occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 17080 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...