/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-wmm/safe036.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 16:24:07,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 16:24:07,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 16:24:07,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-03 16:24:07,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-03 16:24:07,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-03 16:24:07,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-03 16:24:07,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-03 16:24:07,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-03 16:24:07,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-03 16:24:07,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-03 16:24:07,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-03 16:24:07,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-03 16:24:07,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-03 16:24:07,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-03 16:24:07,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-03 16:24:07,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-03 16:24:07,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-03 16:24:07,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-03 16:24:07,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-03 16:24:07,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-03 16:24:07,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-03 16:24:07,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-03 16:24:07,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-03 16:24:07,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-03 16:24:07,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 16:24:07,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 16:24:07,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 16:24:07,588 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 [2022-03-03 16:24:07,612 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 16:24:07,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 16:24:07,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 16:24:07,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 16:24:07,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 16:24:07,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 16:24:07,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 16:24:07,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 16:24:07,615 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 16:24:07,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 16:24:07,616 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 16:24:07,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 16:24:07,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 16:24:07,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 16:24:07,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 16:24:07,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 16:24:07,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 16:24:07,617 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 16:24:07,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 16:24:07,617 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 16:24:07,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 16:24:07,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 16:24:07,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 16:24:07,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 16:24:07,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 16:24:07,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:24:07,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 16:24:07,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 16:24:07,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 16:24:07,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 16:24:07,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 16:24:07,620 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 16:24:07,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 16:24:07,620 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 16:24:07,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 16:24:07,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 16:24:07,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 16:24:07,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 16:24:07,835 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 16:24:07,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036.i [2022-03-03 16:24:07,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b40265e6/37218c91aa744849a3c11e997af397be/FLAG74af4a7eb [2022-03-03 16:24:08,340 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 16:24:08,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036.i [2022-03-03 16:24:08,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b40265e6/37218c91aa744849a3c11e997af397be/FLAG74af4a7eb [2022-03-03 16:24:08,871 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b40265e6/37218c91aa744849a3c11e997af397be [2022-03-03 16:24:08,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 16:24:08,877 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 16:24:08,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 16:24:08,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 16:24:08,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 16:24:08,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:24:08" (1/1) ... [2022-03-03 16:24:08,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a1d3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:08, skipping insertion in model container [2022-03-03 16:24:08,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:24:08" (1/1) ... [2022-03-03 16:24:08,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 16:24:08,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 16:24:09,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036.i[941,954] [2022-03-03 16:24:09,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:24:09,229 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 16:24:09,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036.i[941,954] [2022-03-03 16:24:09,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:24:09,302 INFO L208 MainTranslator]: Completed translation [2022-03-03 16:24:09,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:09 WrapperNode [2022-03-03 16:24:09,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 16:24:09,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 16:24:09,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 16:24:09,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 16:24:09,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:09" (1/1) ... [2022-03-03 16:24:09,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:09" (1/1) ... [2022-03-03 16:24:09,360 INFO L137 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-03-03 16:24:09,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 16:24:09,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 16:24:09,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 16:24:09,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 16:24:09,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:09" (1/1) ... [2022-03-03 16:24:09,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:09" (1/1) ... [2022-03-03 16:24:09,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:09" (1/1) ... [2022-03-03 16:24:09,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:09" (1/1) ... [2022-03-03 16:24:09,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:09" (1/1) ... [2022-03-03 16:24:09,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:09" (1/1) ... [2022-03-03 16:24:09,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:09" (1/1) ... [2022-03-03 16:24:09,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 16:24:09,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 16:24:09,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 16:24:09,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 16:24:09,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:09" (1/1) ... [2022-03-03 16:24:09,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:24:09,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:24:09,436 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) [2022-03-03 16:24:09,454 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 [2022-03-03 16:24:09,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 16:24:09,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-03 16:24:09,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 16:24:09,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 16:24:09,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 16:24:09,476 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-03-03 16:24:09,476 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-03-03 16:24:09,476 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-03-03 16:24:09,476 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-03-03 16:24:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 16:24:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-03 16:24:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 16:24:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 16:24:09,478 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 16:24:09,610 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 16:24:09,612 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 16:24:09,729 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 16:24:09,735 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 16:24:09,735 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 16:24:09,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:24:09 BoogieIcfgContainer [2022-03-03 16:24:09,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 16:24:09,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 16:24:09,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 16:24:09,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 16:24:09,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:24:08" (1/3) ... [2022-03-03 16:24:09,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8c724f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:24:09, skipping insertion in model container [2022-03-03 16:24:09,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:24:09" (2/3) ... [2022-03-03 16:24:09,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8c724f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:24:09, skipping insertion in model container [2022-03-03 16:24:09,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:24:09" (3/3) ... [2022-03-03 16:24:09,747 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036.i [2022-03-03 16:24:09,752 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 16:24:09,753 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 16:24:09,753 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 16:24:09,753 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 16:24:09,789 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,789 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,789 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,789 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,790 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,790 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,790 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,790 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,791 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,791 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,791 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,791 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,791 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,792 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,792 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,792 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,792 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,792 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,792 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,792 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,793 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,793 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,793 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,793 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,796 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,796 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,796 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,797 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,798 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,799 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,799 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,799 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:24:09,800 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-03 16:24:09,837 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 16:24:09,842 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 16:24:09,843 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-03 16:24:09,851 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 75 transitions, 160 flow [2022-03-03 16:24:09,965 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 955 states, 954 states have (on average 2.629979035639413) internal successors, (2509), 954 states have internal predecessors, (2509), 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) [2022-03-03 16:24:09,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 955 states, 954 states have (on average 2.629979035639413) internal successors, (2509), 954 states have internal predecessors, (2509), 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) [2022-03-03 16:24:09,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-03 16:24:09,996 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:24:09,997 INFO L514 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] [2022-03-03 16:24:09,998 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:24:10,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:24:10,007 INFO L85 PathProgramCache]: Analyzing trace with hash -2129458235, now seen corresponding path program 1 times [2022-03-03 16:24:10,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:24:10,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037084281] [2022-03-03 16:24:10,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:24:10,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:24:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:24:10,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:24:10,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:24:10,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037084281] [2022-03-03 16:24:10,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037084281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:24:10,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:24:10,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 16:24:10,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041905024] [2022-03-03 16:24:10,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:24:10,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 16:24:10,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:24:10,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 16:24:10,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-03 16:24:10,393 INFO L87 Difference]: Start difference. First operand has 955 states, 954 states have (on average 2.629979035639413) internal successors, (2509), 954 states have internal predecessors, (2509), 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 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2022-03-03 16:24:10,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:24:10,574 INFO L93 Difference]: Finished difference Result 1009 states and 2505 transitions. [2022-03-03 16:24:10,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 16:24:10,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2022-03-03 16:24:10,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:24:10,591 INFO L225 Difference]: With dead ends: 1009 [2022-03-03 16:24:10,591 INFO L226 Difference]: Without dead ends: 682 [2022-03-03 16:24:10,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:24:10,598 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 120 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:24:10,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 307 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:24:10,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-03-03 16:24:10,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 682. [2022-03-03 16:24:10,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 2.4302496328928047) internal successors, (1655), 681 states have internal predecessors, (1655), 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) [2022-03-03 16:24:10,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1655 transitions. [2022-03-03 16:24:10,666 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1655 transitions. Word has length 47 [2022-03-03 16:24:10,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:24:10,667 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 1655 transitions. [2022-03-03 16:24:10,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2022-03-03 16:24:10,667 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1655 transitions. [2022-03-03 16:24:10,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-03 16:24:10,670 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:24:10,670 INFO L514 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] [2022-03-03 16:24:10,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 16:24:10,670 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:24:10,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:24:10,671 INFO L85 PathProgramCache]: Analyzing trace with hash 573322729, now seen corresponding path program 1 times [2022-03-03 16:24:10,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:24:10,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745378388] [2022-03-03 16:24:10,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:24:10,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:24:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:24:10,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:24:10,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:24:10,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745378388] [2022-03-03 16:24:10,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745378388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:24:10,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:24:10,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 16:24:10,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175093336] [2022-03-03 16:24:10,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:24:10,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 16:24:10,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:24:10,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 16:24:10,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:24:10,813 INFO L87 Difference]: Start difference. First operand 682 states and 1655 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-03-03 16:24:10,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:24:10,917 INFO L93 Difference]: Finished difference Result 511 states and 1175 transitions. [2022-03-03 16:24:10,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 16:24:10,918 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2022-03-03 16:24:10,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:24:10,921 INFO L225 Difference]: With dead ends: 511 [2022-03-03 16:24:10,922 INFO L226 Difference]: Without dead ends: 346 [2022-03-03 16:24:10,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-03-03 16:24:10,923 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 136 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:24:10,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 305 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:24:10,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-03-03 16:24:10,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2022-03-03 16:24:10,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 2.2) internal successors, (759), 345 states have internal predecessors, (759), 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) [2022-03-03 16:24:10,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 759 transitions. [2022-03-03 16:24:10,936 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 759 transitions. Word has length 51 [2022-03-03 16:24:10,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:24:10,937 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 759 transitions. [2022-03-03 16:24:10,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-03-03 16:24:10,937 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 759 transitions. [2022-03-03 16:24:10,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-03 16:24:10,938 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:24:10,938 INFO L514 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] [2022-03-03 16:24:10,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 16:24:10,939 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:24:10,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:24:10,939 INFO L85 PathProgramCache]: Analyzing trace with hash -190779285, now seen corresponding path program 1 times [2022-03-03 16:24:10,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:24:10,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504615652] [2022-03-03 16:24:10,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:24:10,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:24:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:24:11,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:24:11,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:24:11,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504615652] [2022-03-03 16:24:11,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504615652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:24:11,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:24:11,061 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 16:24:11,061 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186834074] [2022-03-03 16:24:11,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:24:11,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 16:24:11,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:24:11,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 16:24:11,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:24:11,063 INFO L87 Difference]: Start difference. First operand 346 states and 759 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2022-03-03 16:24:11,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:24:11,164 INFO L93 Difference]: Finished difference Result 514 states and 1144 transitions. [2022-03-03 16:24:11,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 16:24:11,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2022-03-03 16:24:11,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:24:11,168 INFO L225 Difference]: With dead ends: 514 [2022-03-03 16:24:11,168 INFO L226 Difference]: Without dead ends: 294 [2022-03-03 16:24:11,172 INFO L932 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 [2022-03-03 16:24:11,176 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 67 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:24:11,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 415 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:24:11,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-03-03 16:24:11,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 282. [2022-03-03 16:24:11,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 2.1601423487544484) internal successors, (607), 281 states have internal predecessors, (607), 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) [2022-03-03 16:24:11,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 607 transitions. [2022-03-03 16:24:11,189 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 607 transitions. Word has length 55 [2022-03-03 16:24:11,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:24:11,189 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 607 transitions. [2022-03-03 16:24:11,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2022-03-03 16:24:11,190 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 607 transitions. [2022-03-03 16:24:11,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-03 16:24:11,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:24:11,193 INFO L514 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] [2022-03-03 16:24:11,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 16:24:11,194 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:24:11,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:24:11,195 INFO L85 PathProgramCache]: Analyzing trace with hash -418246997, now seen corresponding path program 2 times [2022-03-03 16:24:11,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:24:11,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162936305] [2022-03-03 16:24:11,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:24:11,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:24:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:24:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:24:11,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:24:11,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162936305] [2022-03-03 16:24:11,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162936305] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:24:11,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:24:11,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 16:24:11,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793123559] [2022-03-03 16:24:11,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:24:11,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 16:24:11,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:24:11,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 16:24:11,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-03 16:24:11,312 INFO L87 Difference]: Start difference. First operand 282 states and 607 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2022-03-03 16:24:11,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:24:11,390 INFO L93 Difference]: Finished difference Result 264 states and 565 transitions. [2022-03-03 16:24:11,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 16:24:11,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2022-03-03 16:24:11,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:24:11,391 INFO L225 Difference]: With dead ends: 264 [2022-03-03 16:24:11,391 INFO L226 Difference]: Without dead ends: 0 [2022-03-03 16:24:11,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-03-03 16:24:11,400 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 50 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:24:11,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 332 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:24:11,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-03 16:24:11,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-03 16:24:11,402 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) [2022-03-03 16:24:11,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-03 16:24:11,402 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2022-03-03 16:24:11,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:24:11,403 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-03 16:24:11,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2022-03-03 16:24:11,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-03 16:24:11,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-03 16:24:11,406 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-03 16:24:11,406 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-03 16:24:11,407 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-03 16:24:11,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 16:24:11,412 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-03-03 16:24:11,418 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 16:24:11,418 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 16:24:11,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 04:24:11 BasicIcfg [2022-03-03 16:24:11,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 16:24:11,421 INFO L158 Benchmark]: Toolchain (without parser) took 2544.31ms. Allocated memory was 173.0MB in the beginning and 207.6MB in the end (delta: 34.6MB). Free memory was 121.5MB in the beginning and 97.2MB in the end (delta: 24.3MB). Peak memory consumption was 59.7MB. Max. memory is 8.0GB. [2022-03-03 16:24:11,421 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory was 139.2MB in the beginning and 139.1MB in the end (delta: 136.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 16:24:11,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.75ms. Allocated memory was 173.0MB in the beginning and 207.6MB in the end (delta: 34.6MB). Free memory was 121.3MB in the beginning and 175.1MB in the end (delta: -53.8MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. [2022-03-03 16:24:11,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.18ms. Allocated memory is still 207.6MB. Free memory was 175.1MB in the beginning and 173.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 16:24:11,422 INFO L158 Benchmark]: Boogie Preprocessor took 32.70ms. Allocated memory is still 207.6MB. Free memory was 173.0MB in the beginning and 171.9MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 16:24:11,422 INFO L158 Benchmark]: RCFGBuilder took 341.86ms. Allocated memory is still 207.6MB. Free memory was 171.9MB in the beginning and 160.4MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-03 16:24:11,422 INFO L158 Benchmark]: TraceAbstraction took 1682.33ms. Allocated memory is still 207.6MB. Free memory was 159.9MB in the beginning and 97.2MB in the end (delta: 62.7MB). Peak memory consumption was 64.2MB. Max. memory is 8.0GB. [2022-03-03 16:24:11,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory was 139.2MB in the beginning and 139.1MB in the end (delta: 136.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 420.75ms. Allocated memory was 173.0MB in the beginning and 207.6MB in the end (delta: 34.6MB). Free memory was 121.3MB in the beginning and 175.1MB in the end (delta: -53.8MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.18ms. Allocated memory is still 207.6MB. Free memory was 175.1MB in the beginning and 173.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.70ms. Allocated memory is still 207.6MB. Free memory was 173.0MB in the beginning and 171.9MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 341.86ms. Allocated memory is still 207.6MB. Free memory was 171.9MB in the beginning and 160.4MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1682.33ms. Allocated memory is still 207.6MB. Free memory was 159.9MB in the beginning and 97.2MB in the end (delta: 62.7MB). Peak memory consumption was 64.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 90 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 373 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 373 mSDsluCounter, 1359 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1092 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 301 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=955occurred in iteration=0, InterpolantAutomatonStates: 34, 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, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 204 ConstructedInterpolants, 0 QuantifiedInterpolants, 632 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-03 16:24:11,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...