/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 11:15:00,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 11:15:00,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 11:15:00,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-21 11:15:00,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-21 11:15:00,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-21 11:15:00,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-21 11:15:00,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-21 11:15:00,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-21 11:15:00,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-21 11:15:00,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-21 11:15:00,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-21 11:15:00,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 11:15:00,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 11:15:00,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 11:15:00,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 11:15:00,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 11:15:00,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 11:15:00,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 11:15:00,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 11:15:00,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 11:15:00,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 11:15:00,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 11:15:00,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 11:15:00,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-21 11:15:00,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-21 11:15:00,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-21 11:15:00,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-21 11:15:00,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-21 11:15:00,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-21 11:15:00,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-21 11:15:00,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-21 11:15:00,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-21 11:15:00,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-21 11:15:00,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-21 11:15:00,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-21 11:15:00,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-21 11:15:00,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-21 11:15:00,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 11:15:00,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 11:15:00,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 11:15:00,739 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.epf [2021-08-21 11:15:00,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 11:15:00,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 11:15:00,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 11:15:00,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 11:15:00,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 11:15:00,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 11:15:00,778 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 11:15:00,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 11:15:00,778 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 11:15:00,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 11:15:00,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 11:15:00,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 11:15:00,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 11:15:00,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 11:15:00,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 11:15:00,779 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 11:15:00,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 11:15:00,780 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 11:15:00,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 11:15:00,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 11:15:00,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 11:15:00,780 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 11:15:00,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 11:15:00,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:15:00,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 11:15:00,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 11:15:00,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 11:15:00,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 11:15:00,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 11:15:00,781 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 11:15:00,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 11:15:00,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 11:15:01,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 11:15:01,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 11:15:01,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 11:15:01,132 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 11:15:01,134 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 11:15:01,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i [2021-08-21 11:15:01,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d9b0986/0c64da7d693f47caa649f1f721f06ca7/FLAG44033d9a3 [2021-08-21 11:15:01,718 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 11:15:01,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i [2021-08-21 11:15:01,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d9b0986/0c64da7d693f47caa649f1f721f06ca7/FLAG44033d9a3 [2021-08-21 11:15:02,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d9b0986/0c64da7d693f47caa649f1f721f06ca7 [2021-08-21 11:15:02,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 11:15:02,015 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 11:15:02,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 11:15:02,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 11:15:02,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 11:15:02,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:15:02" (1/1) ... [2021-08-21 11:15:02,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d36d658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02, skipping insertion in model container [2021-08-21 11:15:02,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:15:02" (1/1) ... [2021-08-21 11:15:02,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 11:15:02,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 11:15:02,185 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i[938,951] [2021-08-21 11:15:02,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:15:02,321 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 11:15:02,331 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i[938,951] [2021-08-21 11:15:02,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:15:02,395 INFO L208 MainTranslator]: Completed translation [2021-08-21 11:15:02,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02 WrapperNode [2021-08-21 11:15:02,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 11:15:02,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 11:15:02,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 11:15:02,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 11:15:02,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02" (1/1) ... [2021-08-21 11:15:02,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02" (1/1) ... [2021-08-21 11:15:02,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 11:15:02,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 11:15:02,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 11:15:02,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 11:15:02,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02" (1/1) ... [2021-08-21 11:15:02,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02" (1/1) ... [2021-08-21 11:15:02,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02" (1/1) ... [2021-08-21 11:15:02,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02" (1/1) ... [2021-08-21 11:15:02,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02" (1/1) ... [2021-08-21 11:15:02,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02" (1/1) ... [2021-08-21 11:15:02,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02" (1/1) ... [2021-08-21 11:15:02,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 11:15:02,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 11:15:02,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 11:15:02,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 11:15:02,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02" (1/1) ... [2021-08-21 11:15:02,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:15:02,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 11:15:02,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 11:15:02,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 11:15:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-21 11:15:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 11:15:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 11:15:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 11:15:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2021-08-21 11:15:02,558 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2021-08-21 11:15:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2021-08-21 11:15:02,559 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2021-08-21 11:15:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 11:15:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 11:15:02,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 11:15:02,560 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 11:15:03,005 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 11:15:03,005 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-08-21 11:15:03,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:15:03 BoogieIcfgContainer [2021-08-21 11:15:03,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 11:15:03,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 11:15:03,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 11:15:03,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 11:15:03,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:15:02" (1/3) ... [2021-08-21 11:15:03,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a61833e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:15:03, skipping insertion in model container [2021-08-21 11:15:03,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:15:02" (2/3) ... [2021-08-21 11:15:03,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a61833e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:15:03, skipping insertion in model container [2021-08-21 11:15:03,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:15:03" (3/3) ... [2021-08-21 11:15:03,014 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd-2.i [2021-08-21 11:15:03,018 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 11:15:03,018 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 11:15:03,019 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-21 11:15:03,019 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 11:15:03,043 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,044 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,044 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,044 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,044 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,044 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,045 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,045 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,045 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,045 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,045 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,045 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,046 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,046 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,046 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,046 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,046 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,047 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,047 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,047 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,047 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,047 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,047 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,048 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,050 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,051 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,051 WARN L313 ript$VariableManager]: TermVariabe |dec_aThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,051 WARN L313 ript$VariableManager]: TermVariabe dec_aThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,053 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,053 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,054 WARN L313 ript$VariableManager]: TermVariabe |dec_bThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,054 WARN L313 ript$VariableManager]: TermVariabe dec_bThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:15:03,059 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-21 11:15:03,094 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 11:15:03,100 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 11:15:03,100 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-21 11:15:03,111 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 124 places, 129 transitions, 274 flow [2021-08-21 11:15:03,143 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 285 states, 282 states have (on average 2.3226950354609928) internal successors, (655), 284 states have internal predecessors, (655), 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) [2021-08-21 11:15:03,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 285 states, 282 states have (on average 2.3226950354609928) internal successors, (655), 284 states have internal predecessors, (655), 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) [2021-08-21 11:15:03,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-08-21 11:15:03,168 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:15:03,169 INFO L512 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, 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] [2021-08-21 11:15:03,170 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-21 11:15:03,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:15:03,178 INFO L82 PathProgramCache]: Analyzing trace with hash -544947514, now seen corresponding path program 1 times [2021-08-21 11:15:03,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:15:03,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530632125] [2021-08-21 11:15:03,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:15:03,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:15:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:15:03,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:15:03,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:15:03,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530632125] [2021-08-21 11:15:03,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530632125] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:15:03,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:15:03,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 11:15:03,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630524087] [2021-08-21 11:15:03,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-21 11:15:03,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:15:03,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-21 11:15:03,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-21 11:15:03,446 INFO L87 Difference]: Start difference. First operand has 285 states, 282 states have (on average 2.3226950354609928) internal successors, (655), 284 states have internal predecessors, (655), 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 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 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) [2021-08-21 11:15:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:15:03,465 INFO L93 Difference]: Finished difference Result 283 states and 589 transitions. [2021-08-21 11:15:03,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 11:15:03,466 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 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 88 [2021-08-21 11:15:03,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:15:03,476 INFO L225 Difference]: With dead ends: 283 [2021-08-21 11:15:03,476 INFO L226 Difference]: Without dead ends: 278 [2021-08-21 11:15:03,478 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-21 11:15:03,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-08-21 11:15:03,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2021-08-21 11:15:03,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 275 states have (on average 2.1236363636363635) internal successors, (584), 277 states have internal predecessors, (584), 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) [2021-08-21 11:15:03,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 584 transitions. [2021-08-21 11:15:03,530 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 584 transitions. Word has length 88 [2021-08-21 11:15:03,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:15:03,530 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 584 transitions. [2021-08-21 11:15:03,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 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) [2021-08-21 11:15:03,531 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 584 transitions. [2021-08-21 11:15:03,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-08-21 11:15:03,533 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:15:03,534 INFO L512 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, 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] [2021-08-21 11:15:03,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 11:15:03,534 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-21 11:15:03,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:15:03,535 INFO L82 PathProgramCache]: Analyzing trace with hash 2049823078, now seen corresponding path program 1 times [2021-08-21 11:15:03,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:15:03,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371889790] [2021-08-21 11:15:03,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:15:03,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:15:03,573 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-21 11:15:03,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887179442] [2021-08-21 11:15:03,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:15:03,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-21 11:15:03,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 11:15:03,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-21 11:15:03,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-21 11:15:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:15:03,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-21 11:15:03,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-21 11:15:04,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:15:04,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:15:04,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371889790] [2021-08-21 11:15:04,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-21 11:15:04,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887179442] [2021-08-21 11:15:04,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887179442] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:15:04,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:15:04,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:15:04,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201762912] [2021-08-21 11:15:04,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:15:04,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:15:04,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:15:04,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:15:04,784 INFO L87 Difference]: Start difference. First operand 278 states and 584 transitions. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2021-08-21 11:15:05,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:15:05,534 INFO L93 Difference]: Finished difference Result 488 states and 1052 transitions. [2021-08-21 11:15:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-21 11:15:05,534 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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 88 [2021-08-21 11:15:05,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:15:05,538 INFO L225 Difference]: With dead ends: 488 [2021-08-21 11:15:05,538 INFO L226 Difference]: Without dead ends: 488 [2021-08-21 11:15:05,539 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 648.0ms TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:15:05,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-08-21 11:15:05,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 446. [2021-08-21 11:15:05,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 443 states have (on average 2.1738148984198644) internal successors, (963), 445 states have internal predecessors, (963), 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) [2021-08-21 11:15:05,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 963 transitions. [2021-08-21 11:15:05,556 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 963 transitions. Word has length 88 [2021-08-21 11:15:05,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:15:05,556 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 963 transitions. [2021-08-21 11:15:05,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2021-08-21 11:15:05,557 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 963 transitions. [2021-08-21 11:15:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-08-21 11:15:05,559 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:15:05,560 INFO L512 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, 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] [2021-08-21 11:15:05,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-21 11:15:05,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-21 11:15:05,769 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-21 11:15:05,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:15:05,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1968390794, now seen corresponding path program 1 times [2021-08-21 11:15:05,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:15:05,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426101577] [2021-08-21 11:15:05,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:15:05,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:15:05,799 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-21 11:15:05,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1567611538] [2021-08-21 11:15:05,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:15:05,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-21 11:15:05,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 11:15:05,803 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-21 11:15:05,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-21 11:15:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:15:06,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 36 conjunts are in the unsatisfiable core [2021-08-21 11:15:06,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-21 11:15:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:15:10,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:15:10,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426101577] [2021-08-21 11:15:10,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-21 11:15:10,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567611538] [2021-08-21 11:15:10,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567611538] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-21 11:15:10,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-21 11:15:10,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2021-08-21 11:15:10,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502864263] [2021-08-21 11:15:10,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-21 11:15:10,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:15:10,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-21 11:15:10,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2021-08-21 11:15:10,565 INFO L87 Difference]: Start difference. First operand 446 states and 963 transitions. Second operand has 20 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 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) [2021-08-21 11:15:27,753 WARN L207 SmtUtils]: Spent 5.86 s on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2021-08-21 11:15:39,722 WARN L207 SmtUtils]: Spent 10.22 s on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2021-08-21 11:16:01,798 WARN L207 SmtUtils]: Spent 21.12 s on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2021-08-21 11:16:25,213 WARN L207 SmtUtils]: Spent 17.15 s on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-08-21 11:16:31,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:16:31,896 INFO L93 Difference]: Finished difference Result 738 states and 1599 transitions. [2021-08-21 11:16:31,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-21 11:16:31,897 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 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 90 [2021-08-21 11:16:31,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:16:31,901 INFO L225 Difference]: With dead ends: 738 [2021-08-21 11:16:31,902 INFO L226 Difference]: Without dead ends: 738 [2021-08-21 11:16:31,902 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 68327.3ms TimeCoverageRelationStatistics Valid=362, Invalid=1358, Unknown=2, NotChecked=0, Total=1722 [2021-08-21 11:16:31,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2021-08-21 11:16:31,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 599. [2021-08-21 11:16:31,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 596 states have (on average 2.278523489932886) internal successors, (1358), 598 states have internal predecessors, (1358), 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) [2021-08-21 11:16:31,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1358 transitions. [2021-08-21 11:16:31,920 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1358 transitions. Word has length 90 [2021-08-21 11:16:31,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:16:31,921 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 1358 transitions. [2021-08-21 11:16:31,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 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) [2021-08-21 11:16:31,921 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1358 transitions. [2021-08-21 11:16:31,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-08-21 11:16:31,923 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:16:31,923 INFO L512 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, 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, 1, 1] [2021-08-21 11:16:31,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-08-21 11:16:32,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-08-21 11:16:32,129 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-21 11:16:32,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:16:32,129 INFO L82 PathProgramCache]: Analyzing trace with hash 685027763, now seen corresponding path program 1 times [2021-08-21 11:16:32,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:16:32,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144889884] [2021-08-21 11:16:32,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:16:32,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:16:32,162 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-21 11:16:32,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736342502] [2021-08-21 11:16:32,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:16:32,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-21 11:16:32,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 11:16:32,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-21 11:16:32,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-21 11:16:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:16:32,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 30 conjunts are in the unsatisfiable core [2021-08-21 11:16:32,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-21 11:16:33,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:16:33,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:16:33,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144889884] [2021-08-21 11:16:33,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-21 11:16:33,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736342502] [2021-08-21 11:16:33,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736342502] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:16:33,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:16:33,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-08-21 11:16:33,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012671297] [2021-08-21 11:16:33,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-21 11:16:33,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:16:33,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-21 11:16:33,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-08-21 11:16:33,223 INFO L87 Difference]: Start difference. First operand 599 states and 1358 transitions. Second operand has 16 states, 16 states have (on average 5.75) internal successors, (92), 16 states have internal predecessors, (92), 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) [2021-08-21 11:16:35,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:16:35,160 INFO L93 Difference]: Finished difference Result 858 states and 1849 transitions. [2021-08-21 11:16:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-21 11:16:35,160 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.75) internal successors, (92), 16 states have internal predecessors, (92), 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 92 [2021-08-21 11:16:35,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:16:35,165 INFO L225 Difference]: With dead ends: 858 [2021-08-21 11:16:35,165 INFO L226 Difference]: Without dead ends: 858 [2021-08-21 11:16:35,166 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1756.6ms TimeCoverageRelationStatistics Valid=408, Invalid=1152, Unknown=0, NotChecked=0, Total=1560 [2021-08-21 11:16:35,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2021-08-21 11:16:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 725. [2021-08-21 11:16:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 722 states have (on average 2.229916897506925) internal successors, (1610), 724 states have internal predecessors, (1610), 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) [2021-08-21 11:16:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1610 transitions. [2021-08-21 11:16:35,184 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1610 transitions. Word has length 92 [2021-08-21 11:16:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:16:35,184 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 1610 transitions. [2021-08-21 11:16:35,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.75) internal successors, (92), 16 states have internal predecessors, (92), 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) [2021-08-21 11:16:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1610 transitions. [2021-08-21 11:16:35,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-08-21 11:16:35,187 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:16:35,187 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 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, 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] [2021-08-21 11:16:35,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-21 11:16:35,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-21 11:16:35,393 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-08-21 11:16:35,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:16:35,394 INFO L82 PathProgramCache]: Analyzing trace with hash -2108248724, now seen corresponding path program 2 times [2021-08-21 11:16:35,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:16:35,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800674603] [2021-08-21 11:16:35,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:16:35,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:16:35,414 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-21 11:16:35,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64009361] [2021-08-21 11:16:35,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-21 11:16:35,414 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-21 11:16:35,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 11:16:35,417 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-21 11:16:35,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-21 11:16:36,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-21 11:16:36,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-21 11:16:36,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 42 conjunts are in the unsatisfiable core [2021-08-21 11:16:36,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-08-21 11:29:37,607 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-21 11:29:37,629 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-21 11:29:37,638 WARN L223 SmtUtils]: Removed 1 from assertion stack [2021-08-21 11:29:37,640 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:29:37,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-21 11:29:37,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-21 11:29:37,846 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 93 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 38 for 18ms.. [2021-08-21 11:29:37,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:29:37,848 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:29:37,848 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 11:29:37,848 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 11:29:37,851 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 11:29:37,851 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 11:29:37,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:29:37 BasicIcfg [2021-08-21 11:29:37,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 11:29:37,854 INFO L168 Benchmark]: Toolchain (without parser) took 875838.21 ms. Allocated memory was 196.1 MB in the beginning and 283.1 MB in the end (delta: 87.0 MB). Free memory was 160.3 MB in the beginning and 154.2 MB in the end (delta: 6.1 MB). Peak memory consumption was 171.8 MB. Max. memory is 8.0 GB. [2021-08-21 11:29:37,854 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 196.1 MB. Free memory is still 178.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 11:29:37,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.47 ms. Allocated memory is still 196.1 MB. Free memory was 159.9 MB in the beginning and 169.4 MB in the end (delta: -9.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-21 11:29:37,855 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.74 ms. Allocated memory is still 196.1 MB. Free memory was 169.4 MB in the beginning and 166.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:29:37,855 INFO L168 Benchmark]: Boogie Preprocessor took 22.81 ms. Allocated memory is still 196.1 MB. Free memory was 166.8 MB in the beginning and 165.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:29:37,856 INFO L168 Benchmark]: RCFGBuilder took 515.58 ms. Allocated memory is still 196.1 MB. Free memory was 165.2 MB in the beginning and 131.6 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. [2021-08-21 11:29:37,856 INFO L168 Benchmark]: TraceAbstraction took 874843.81 ms. Allocated memory was 196.1 MB in the beginning and 283.1 MB in the end (delta: 87.0 MB). Free memory was 131.1 MB in the beginning and 154.2 MB in the end (delta: -23.1 MB). Peak memory consumption was 144.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:29:37,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 196.1 MB. Free memory is still 178.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 377.47 ms. Allocated memory is still 196.1 MB. Free memory was 159.9 MB in the beginning and 169.4 MB in the end (delta: -9.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 71.74 ms. Allocated memory is still 196.1 MB. Free memory was 169.4 MB in the beginning and 166.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.81 ms. Allocated memory is still 196.1 MB. Free memory was 166.8 MB in the beginning and 165.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 515.58 ms. Allocated memory is still 196.1 MB. Free memory was 165.2 MB in the beginning and 131.6 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 874843.81 ms. Allocated memory was 196.1 MB in the beginning and 283.1 MB in the end (delta: 87.0 MB). Free memory was 131.1 MB in the beginning and 154.2 MB in the end (delta: -23.1 MB). Peak memory consumption was 144.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 93 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 38 for 18ms.. - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 93 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 38 for 18ms.. - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 93 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 38 for 18ms.. - TimeoutResultAtElement [Line: 729]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 93 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 38 for 18ms.. - TimeoutResultAtElement [Line: 730]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 93 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 38 for 18ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 132 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 874758.1ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 34.1ms, AutomataDifference: 84083.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 42.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 441 SDtfs, 2529 SDslu, 3686 SDs, 0 SdLazy, 1124 SolverSat, 96 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 15289.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 328 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 70732.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=725occurred in iteration=4, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 93.7ms AutomataMinimizationTime, 4 MinimizatonAttempts, 314 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 55.7ms SsaConstructionTime, 420.9ms SatisfiabilityAnalysisTime, 6332.6ms InterpolantComputationTime, 358 NumberOfCodeBlocks, 358 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 354 ConstructedInterpolants, 0 QuantifiedInterpolants, 2484 SizeOfPredicates, 46 NumberOfNonLiveVariables, 614 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 0/1 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 could not prove your program: Timeout Completed graceful shutdown